Bump codecov/codecov-action from 3 to 4

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 3 to 4.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v3...v4)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/build-test-measure.yml

@@ -181,7 +181,7 @@ jobs:
 
       - name: Upload code coverage report
         if: github.actor != 'dependabot[bot]'
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: build/logs/lcov.info
           flags: javascript
@@ -456,7 +456,7 @@ jobs:
 
       - name: Upload code coverage report
         if: ${{ matrix.coverage == true && needs.pre-run.outputs.changed-php-count > 0 && github.actor != 'dependabot[bot]' }}
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ${{ env.WP_CORE_DIR }}/src/wp-content/plugins/amp/build/logs/clover.xml
           flags: php,unit