fix: correct golangci-lint v2 output format flag in sonar workflow

- Replace deprecated --out-format flag with --output.checkstyle.path
- Fixes 'unknown flag: --out-format' error in golangci-lint v2

Author: rohenaz

.github/workflows/sonar.yaml

@@ -44,7 +44,7 @@ jobs:
         uses: golangci/golangci-lint-action@v8
         with:
           version: ${{ env.GOLANGCI_LINT_VERSION }}
-          args: --timeout=5m --issues-exit-code=0 --out-format=checkstyle:golangci-lint-report.xml
+          args: --timeout=5m --issues-exit-code=0 --output.checkstyle.path=golangci-lint-report.xml
 
       - name: SonarCloud Scan
         uses: SonarSource/sonarcloud-github-action@master