Update python-app.yml

Author: kaushalacts

.github/workflows/python-app.yml

@@ -45,7 +45,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
-      - uses: SonarSource/sonarqube-scan-action@main
+      - uses: SonarSource/sonarqube-scan-action@v4
         env:
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
           SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}