Bump coverage-tracker report action to v0.3.0

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: tbjers

.github/workflows/coverage.yml

@@ -22,6 +22,6 @@ jobs:
 
       - run: radon cc -j textkit > radon.json
 
-      - uses: CoverageTracker/coverage-tracker/.github/actions/report@v0.2.0
+      - uses: CoverageTracker/coverage-tracker/.github/actions/report@v0.3.0
         with:
           worker-url: https://demo.coveragetracker.dev