Bump codecov/codecov-action from 5 to 6 (#36)

Author: dependabot[bot]

.github/workflows/codeql.yml

@@ -43,7 +43,7 @@ jobs:
         category: "/language:${{ matrix.language }}"
 
     - name: Upload coverage reports to Codecov
-      uses: codecov/codecov-action@v5
+      uses: codecov/codecov-action@v6
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         files: ./coverage.out