Fixing some issues on RIT workflow

Issues fixed:
1 - Remove the trigger on push for master and *-rc -> we don't need that anymore since we are running it for every commit on PRs against these branches.
2 - Send the status of the execution to slack
3 - Solve the issue that the status of an execution triggered via workflow doesn't update the PR status.
And if we need to use a different branch for RIT, Powpeg and RIT in the PR, it won't change the status to
green after the workflow_dispatch execution -> We will do that adding a parsing on the description, looking
for the branch that need to be used for that PR. If there is no branch configured on the description, we will
try to use the default one.

Branches to be used by RIT:
fed:vovchyk/jackson-ver-bump
rskj:vovchyk/jackson-ver-bump

.github/workflows/rit.yml

@@ -1,8 +1,6 @@
 name: Rootstock Integration Tests
 
 on:
-  push:
-    branches: ["master", "*-rc"]
   pull_request:
     types: [ opened, synchronize, reopened ]
     branches: [ "master", "*-rc" ]
@@ -17,35 +15,129 @@ on:
         required: false
         default: 'master'
 
+env:
+  REGEX_PARSE_BRANCH: '`([a-zA-Z0-9/_-]+)'
+  VALID_BRANCH_REGEX: '^[a-zA-Z0-9._/-]+$'
+
 jobs:
   rootstock-integration-tests:
     name: Rootstock Integration Tests
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
+      - name: Checkout Repository
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+
+      - name: Fetch Pull Request Description
+        id: fetch-pr-description
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          {
+            echo 'pr_description<<EOF'
+            gh pr view ${{ github.event.pull_request.number }} --json body -q .body
+            echo EOF
+          } >> "$GITHUB_ENV"
+
       - name: Set Branch Variables
         id: set-branch-variables
+        env:
+          PR_DESCRIPTION: ${{ env.pr_description }}
         run: |
           # Default values
           POWPEG_BRANCH="master"
-          RIT_BRANCH="${{ github.event.inputs.rit-branch || 'main' }}"
-          RSKJ_BRANCH="${{ github.event.inputs.rskj-branch || 'master' }}"
-
-          if [[ "${{ github.event_name }}" == "push" && "${{ github.ref }}" == "refs/heads/*-rc" ]]; then
-            POWPEG_BRANCH="${{ github.ref }}"
-          elif [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
+          
+          # Set the POWPEG_BRANCH branch
+          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
             POWPEG_BRANCH="${{ github.ref_name }}"
           elif [[ "${{ github.event_name }}" == "pull_request" ]]; then
-            POWPEG_BRANCH="${{ github.head_ref }}"
+            if [[  "$PR_DESCRIPTION" =~ '`'fed:${{ env.REGEX_PARSE_BRANCH }}'`' ]]; then
+              POWPEG_BRANCH="${BASH_REMATCH[1]}"
+            else
+              POWPEG_BRANCH="${{ github.head_ref }}"
+            fi
+          fi
+          
+          # Set the RSKj branch
+          if [[ -n "${{ github.event.inputs.rskj-branch }}" ]]; then
+            RSKJ_BRANCH="${{ github.event.inputs.rskj-branch }}"
+          elif [[ "$PR_DESCRIPTION" =~ '`'rskj:${{ env.REGEX_PARSE_BRANCH }}'`' ]]; then
+            RSKJ_BRANCH="${BASH_REMATCH[1]}"
+          else
+            RSKJ_BRANCH="master"
+          fi
+          
+          # Set the RIT branch
+          if [[ -n "${{ github.event.inputs.rit-branch }}" ]]; then
+            RIT_BRANCH="${{ github.event.inputs.rit-branch }}"
+          elif [[ "$PR_DESCRIPTION" =~ '`'rit:${{ env.REGEX_PARSE_BRANCH }}'`' ]]; then
+            RIT_BRANCH="${BASH_REMATCH[1]}"
+          else
+            RIT_BRANCH="main"
+          fi
+          
+          if ! [[ "$RIT_BRANCH" =~ ${{ env.VALID_BRANCH_REGEX }}  ]]; then
+            echo "Error: Invalid RIT branch name: $RIT_BRANCH"
+            exit 1
+          fi
+    
+          if ! [[ "$POWPEG_BRANCH" =~ ${{ env.VALID_BRANCH_REGEX }}  ]]; then
+            echo "Error: Invalid PowPeg branch name: $POWPEG_BRANCH"
+            exit 1
+          fi
+
+          if ! [[ "$RSKJ_BRANCH" =~ ${{ env.VALID_BRANCH_REGEX }}  ]]; then
+            echo "Error: Invalid RSKJ branch name: $RSKJ_BRANCH"
+            exit 1
           fi
 
+          echo "POWPEG_BRANCH=$POWPEG_BRANCH" >> $GITHUB_ENV
           echo "RSKJ_BRANCH=$RSKJ_BRANCH" >> $GITHUB_ENV
           echo "RIT_BRANCH=$RIT_BRANCH" >> $GITHUB_ENV
-          echo "POWPEG_BRANCH=$POWPEG_BRANCH" >> $GITHUB_ENV
+
+      - name: Set Build URL
+        id: set-build-url
+        run: |
+          BUILD_URL="https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          echo "BUILD_URL=$BUILD_URL" >> $GITHUB_ENV
 
       - name: Run Rootstock Integration Tests
         uses: rsksmart/rootstock-integration-tests@497172fd38dcfaf48c77f9bb1eeb6617eef5eed6 #v1
         with:
           rskj-branch: ${{ env.RSKJ_BRANCH }}
           powpeg-node-branch: ${{ env.POWPEG_BRANCH }}
-          rit-branch: ${{ env. RIT_BRANCH }}
+          rit-branch: ${{ env. RIT_BRANCH }}
+
+      - name: Send Slack Notification on Success
+        if: success() && github.event.pull_request.head.repo.owner.login == 'rsksmart'
+        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 # v1.27.0
+        with:
+          channel-id: 'C8X9Q4PBM' # integration-tests channel
+          payload: |
+            {
+              "attachments": [
+                {
+                  "color": "good",
+                  "text": "OK: :+1: Pull request: ${{ github.head_ref }}  - [#${{ github.run_number }}] - (${{ env.BUILD_URL }}) - *Branches used* [rskj:`rsksmart#${{ env.RSKJ_BRANCH }}`] [fed:`${{ env.POWPEG_BRANCH }}`] [rootstock-integration-tests:`${{ env.RIT_BRANCH }}`]"
+                }
+              ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.GHA_SLACK_NOTIFICATION_TOKEN }}
+
+      - name: Send Slack Notification on Failure
+        if: failure() && github.event.pull_request.head.repo.owner.login == 'rsksmart'
+        uses: slackapi/slack-github-action@37ebaef184d7626c5f204ab8d3baff4262dd30f0 # v1.27.0
+        with:
+          channel-id: 'C8X9Q4PBM' # integration-tests channel
+          payload: |
+            {
+              "attachments": [
+                {
+                  "color": "danger",
+                  "text": "FAILED: :robot_face: *Pull request*: ${{ github.head_ref }}  - [#${{ github.run_number }}] - (${{ env.BUILD_URL }}) - *Branches used* [rskj:`rsksmart#${{ env.RSKJ_BRANCH }}`] [fed:`${{ env.POWPEG_BRANCH }}`] [rootstock-integration-tests:`${{ env.RIT_BRANCH }}`]"
+                }
+              ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.GHA_SLACK_NOTIFICATION_TOKEN }}