chore(deps): update actions/setup-java action to v4

Author: renovate[bot]

.github/workflows/flutter.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - uses: actions/setup-java@v3
+      - uses: actions/setup-java@v4
         with:
           distribution: 'zulu'
           java-version: '17'