fix: reset codecov-action back to v3 (#1304)

## PR Checklist

- [x] Addresses an existing open issue: fixes #1303
- [x] That issue was marked as [`status: accepting
prs`](https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3A+accepting+prs%22)
- [x] Steps in
[CONTRIBUTING.md](https://github.com/JoshuaKGoldberg/create-typescript-app/blob/main/.github/CONTRIBUTING.md)
were taken

## Overview

codecov/codecov-action#1292 &
codecov/feedback#273 make me not want to deal
with this token stuff until it's all resolved.

Things were working fine before, and I really don't want to add a
_third_ token requirement to repos made with `create-typescript-app`.

.github/workflows/test-create.yml

@@ -8,7 +8,7 @@ jobs:
  - run: pnpm run test:create
  - if: always()
  name: Codecov
- uses: codecov/codecov-action@v4
+ uses: codecov/codecov-action@v3
  with:
  files: coverage-create/lcov.info
  flags: create

.github/workflows/test-initialize.yml

@@ -12,7 +12,7 @@ jobs:
  run: mv coverage coverage-initialize
  - if: always()
  name: Codecov
- uses: codecov/codecov-action@v4
+ uses: codecov/codecov-action@v3
  with:
  files: coverage-initialize/lcov.info
  flags: initialize

.github/workflows/test-migrate.yml

@@ -12,7 +12,7 @@ jobs:
  run: mv coverage coverage-migrate
  - if: always()
  name: Codecov
- uses: codecov/codecov-action@v4
+ uses: codecov/codecov-action@v3
  with:
  files: coverage-migrate/lcov.info
  flags: migrate

.github/workflows/test.yml

@@ -6,7 +6,7 @@ jobs:
  - uses: ./.github/actions/prepare
  - run: pnpm run test --coverage
  - name: Codecov
- uses: codecov/codecov-action@v4
+ uses: codecov/codecov-action@v3
  with:
  flags: unit
 

script/__snapshots__/migrate-test-e2e.js.snap

@@ -53,7 +53,7 @@ exports[`expected file changes > .github/workflows/test.yml 1`] = `
 @@ ... @@ jobs:
  - run: pnpm run test --coverage
  - name: Codecov
- uses: codecov/codecov-action@v4
+ uses: codecov/codecov-action@v3
 - with:
 - flags: unit
  

src/steps/writing/creation/dotGitHub/createWorkflows.test.ts

@@ -314,7 +314,7 @@ describe("createWorkflows", () => {
  - uses: ./.github/actions/prepare
  - run: pnpm run test --coverage
  - name: Codecov
- uses: codecov/codecov-action@v4
+ uses: codecov/codecov-action@v3
 
  name: Test
 

src/steps/writing/creation/dotGitHub/createWorkflows.ts

@@ -218,7 +218,7 @@ export function createWorkflows(options: Options) {
  { run: "pnpm run test --coverage" },
  {
  name: "Codecov",
- uses: "codecov/codecov-action@v4",
+ uses: "codecov/codecov-action@v3",
  },
  ],
  }),