CAPAUT-353 Add docker build

.gitea/workflows/build-java.yaml

@@ -8,12 +8,12 @@
 # 
 # Copyright (c) captica GmbH est. 2021
 #
-name: Example workflow
+name: Java Build Workflow
 on:
   workflow_call:
 jobs:
-  Build:
-    name: Java Build Job
+  build:
+    name: Build java distribution
     runs-on: nodejs-ubuntu
     steps:
       - name: Checkout source code