Updated to remove hardcoded test strings (#3101)

Had some left over test strings that I unfortunately missed when submitting. This has caused some failures in flutter as the default branch there is master.

*List which issues are fixed by this PR. You must list at least one issue.*

*If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*

auto_submit/lib/action/git_cli_revert_method.dart

@@ -21,7 +21,11 @@ import 'package:retry/retry.dart';
 
 class GitCliRevertMethod implements RevertMethod {
   @override
-  Future<github.PullRequest?> createRevert(Config config, github.PullRequest pullRequest) async {
+  Future<github.PullRequest?> createRevert(
+    Config config,
+    String initiatingAuthor,
+    github.PullRequest pullRequest,
+  ) async {
     final github.RepositorySlug slug = pullRequest.base!.repo!.slug();
     final String commitSha = pullRequest.mergeCommitSha!;
     // we will need to collect the pr number after the revert request is generated.
@@ -67,7 +71,7 @@ class GitCliRevertMethod implements RevertMethod {
     final RevertIssueBodyFormatter formatter = RevertIssueBodyFormatter(
       slug: slug,
       originalPrNumber: pullRequest.number!,
-      initiatingAuthor: 'ricardoamador',
+      initiatingAuthor: initiatingAuthor,
       originalPrTitle: pullRequest.title!,
       originalPrBody: pullRequest.body!,
     ).format;
@@ -77,7 +81,7 @@ class GitCliRevertMethod implements RevertMethod {
       slug: slug,
       title: formatter.revertPrTitle,
       head: gitRevertBranchName.branch,
-      base: 'main',
+      base: baseBranch,
       draft: false,
       body: formatter.revertPrBody,
     );

auto_submit/lib/action/revert_method.dart

@@ -7,5 +7,5 @@ import 'package:github/github.dart' as github;
 
 abstract class RevertMethod {
   // Allows substitution of the method of creating the revert request.
-  Future<Object?> createRevert(Config config, github.PullRequest pullRequest);
+  Future<Object?> createRevert(Config config, String initiatingAuthor, github.PullRequest pullRequest);
 }

auto_submit/lib/service/revert_request_validation_service.dart

@@ -129,7 +129,7 @@ class RevertRequestValidationService extends ValidationService {
     try {
       // This is the autosubmit query result pull request from graphql.
       final github.PullRequest pullRequest =
-          await revertMethod!.createRevert(config, messagePullRequest) as github.PullRequest;
+          await revertMethod!.createRevert(config, sender, messagePullRequest) as github.PullRequest;
       log.info('Created revert pull request ${slug.fullName}/${pullRequest.number}.');
       // This will come through this service again for processing.
       await githubService.addLabels(slug, pullRequest.number!, [Config.kRevertOfLabel]);

auto_submit/test/src/action/fake_revert_method.dart

@@ -11,7 +11,7 @@ class FakeRevertMethod implements RevertMethod {
   bool throwException = false;
 
   @override
-  Future<Object?> createRevert(Config config, PullRequest pullRequest) async {
+  Future<Object?> createRevert(Config config, String initiatingAuthor, PullRequest pullRequest) async {
     if (throwException) {
       throw 'Crappy github exception not related to the actual error.';
     }