Bump SonarSource/sonarqube-scan-action in /.github/workflows

Bumps [SonarSource/sonarqube-scan-action](https://github.com/sonarsource/sonarqube-scan-action) from 5.2.0 to 5.3.1.
- [Release notes](https://github.com/sonarsource/sonarqube-scan-action/releases)
- [Commits](SonarSource/sonarqube-scan-action@v5.2.0...v5.3.1)

---
updated-dependencies:
- dependency-name: SonarSource/sonarqube-scan-action
  dependency-version: 5.3.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
           flutter analyze
 
       - name: SonarQube Scan
-        uses: SonarSource/sonarqube-scan-action@v5.2.0
+        uses: SonarSource/sonarqube-scan-action@v5.3.1
         env:
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
           SONAR_HOST_URL: https://sonarcloud.io