ci: Replace deprecated test-results-action with codecov-action

The codecov/test-results-action is deprecated in favor of using
codecov/codecov-action with report_type: test_results. Migrate both
dart.yml and logging.yml to use codecov-action@v5.5.2 with the new
report_type parameter.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: buenaflor

.github/workflows/dart.yml

@@ -53,11 +53,12 @@ jobs:
 
       - name: Upload test results to Codecov
         if: ${{ !cancelled() && matrix.sdk == 'stable' }}
-        uses: codecov/test-results-action@0fa95f0e1eeaafde2c782583b36b28ad0d8c77d3 # pin@v1.2.1
+        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # pin@v5.5.2
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           name: dart-tests-${{ runner.os }}-${{ matrix.sdk }}
           flags: dart-${{ matrix.os }}
+          report_type: test_results
           verbose: true
 
       - name: Build example

.github/workflows/logging.yml

@@ -47,11 +47,12 @@ jobs:
 
       - name: Upload test results to Codecov
         if: ${{ !cancelled() && matrix.sdk == 'stable' }}
-        uses: codecov/test-results-action@0fa95f0e1eeaafde2c782583b36b28ad0d8c77d3 # pin@v1.2.1
+        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # pin@v5.5.2
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           name: logging-tests-${{ runner.os }}-${{ matrix.sdk }}
           flags: logging-${{ matrix.os }}
+          report_type: test_results
           verbose: true
 
   analyze: