workflows - Update actions/checkout action to v6

.gitea/workflows/production.yml

@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Check out repo's default branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Getting version
         uses: https://gitea.skydust.fr/actions/get-version@main
       - name: Update java package version

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME