chore(deps): update actions/setup-go action to v6

Author: renovate-bot

.github/workflows/coverage.yaml

@@ -57,7 +57,7 @@ jobs:
       run: ctest --output-on-failure --timeout 60
 
     - name: Setup Go
-      uses: actions/setup-go@v5
+      uses: actions/setup-go@v6
       with:
         go-version: '^1.16'