chore(deps): update sonarsource/sonarqube-scan-action action to v8

Author: renovate[bot]

.github/workflows/flutter.yml

@@ -45,7 +45,7 @@ jobs:
           name: failures
           path: "**/failures/"
 
-      - uses: SonarSource/sonarqube-scan-action@299e4b793aaa83bf2aba7c9c14bedbb485688ec4 # v7.1.0
+      - uses: SonarSource/sonarqube-scan-action@59db25f34e16620e48ab4bb9e4a5dce155cb5432 # v8.0.0
         if: env.SONAR_TOKEN
         env:
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}