Update valitydev/java-workflow action to v4

Author: renovate[bot]

.github/workflows/build.yml

@@ -7,4 +7,4 @@ on:
 
 jobs:
   build:
-    uses: valitydev/java-workflow/.github/workflows/maven-service-build.yml@v2
+    uses: valitydev/java-workflow/.github/workflows/maven-service-build.yml@v4

.github/workflows/deploy.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build-and-deploy:
-    uses: valitydev/java-workflow/.github/workflows/maven-service-deploy.yml@v2
+    uses: valitydev/java-workflow/.github/workflows/maven-service-deploy.yml@v4
     secrets:
       github-token: ${{ secrets.GITHUB_TOKEN }}
       mm-webhook-url: ${{ secrets.MATTERMOST_WEBHOOK_URL }}