Bump codecov/codecov-action from 1 to 3

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 1 to 3.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](codecov/codecov-action@v1...v3)

---
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/ci.yml

@@ -64,7 +64,7 @@ jobs:
 
     - name: Code Coverage Report
       if: matrix.php-version == '7.4'
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v3
 
   cs-stan:
     name: Coding Standard & Static Analysis