Update codecov-action version comment to v7 (#48)

The pinned SHA fb8b3582c8e4def4969c97caa2f19720cb33a72f is tagged v7.0.0
(also mirrored as v6.0.2), so the comment now reflects v7.


Claude-Session: https://claude.ai/code/session_01CLnHKMUR6MdW3t81UZVuqn

Co-authored-by: Claude <noreply@anthropic.com>

Author: tsvikas

project_name/.github/workflows/ci.yml.jinja

@@ -164,12 +164,12 @@ jobs:
           --junitxml=junit.xml
       - name: Upload test results to Codecov
         if: ${{ !cancelled() && steps.run_tests.conclusion != 'skipped' }}
-        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v6
+        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7
         with:
           token: ${{ secrets.CODECOV_TOKEN }}  # zizmor: ignore[secrets-outside-env]
           report_type: test_results
       - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v6
+        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7
         with:
           token: ${{ secrets.CODECOV_TOKEN }}  # zizmor: ignore[secrets-outside-env]
     {%- endraw %}