Remove codecov/test-results-action (#926)

This commit migrates the CI pipeline from the deprecated
`codecov/test-results-action` GitHub action to the suggested
`codecov/codecov-action`.

Author: GlassOfWhiskey

.github/workflows/ci-tests.yaml

@@ -105,9 +105,10 @@ jobs:
         run: ./cwl-conformance-test.sh
       - name: "Upload test results"
         if: ${{ !cancelled() }}
-        uses: codecov/test-results-action@v1
+        uses: codecov/codecov-action@v5
         with:
           flags: ${{ startsWith(matrix.on, 'macos-') && 'macos' || 'ubuntu' }}
+          report_type: test_results
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: "Upload coverage report for conformance tests"
         uses: actions/upload-artifact@v6
@@ -158,7 +159,7 @@ jobs:
         run: uv sync --locked --no-dev --group docs
       - name: "Build documentation and check for consistency"
         env:
-          CHECKSUM: "b6302579fab166d698bbd5c4c7cea72be203a2116d3aa960173229d4c418bf3e"
+          CHECKSUM: "aed3815e178e5192457cb8f118752ab7ddeb1c1a6c62fc17d1b376541c90040c"
         run: |
           cd docs
           HASH="$(uv run --no-sync make checksum | tail -n1)"
@@ -274,9 +275,10 @@ jobs:
         run: tox
       - name: "Upload test results"
         if: ${{ !cancelled() }}
-        uses: codecov/test-results-action@v1
+        uses: codecov/codecov-action@v5
         with:
           flags: ${{ startsWith(matrix.on, 'macos-') && 'macos' || 'ubuntu' }}
+          report_type: test_results
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: "Upload coverage report for unit tests"
         uses: actions/upload-artifact@v6