chore(deps): update github artifact actions to v4 (#211)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/run-tests.yml

@@ -78,7 +78,7 @@ jobs:
           DB_PORT: ${{ job.services.mysql.ports[3306] }}
         if: ${{ matrix.os == 'ubuntu-latest' && matrix.php == 8.1 && matrix.stability == 'prefer-stable' }}
       - name: Save code coverage to artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: matrix.php == 8.1
         with:
           name: code-coverage
@@ -92,7 +92,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Fetch code coverage artifact
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: code-coverage
       - name: Upload coverage to Codecov