Update Github actions

.github/workflows/clean-containers.yaml

@@ -1,8 +1,3 @@
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-
 name: ghcr actions
 
 on:

.github/workflows/maven.yml

@@ -1,11 +1,6 @@
 # This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
 # For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
 
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-
 name: Java CI
 
 on:

.github/workflows/publish.yaml

@@ -1,6 +1,8 @@
-name: Build and Publish
+name: Build and Publish docker image
 
-on: [push]
+on:
+  push:
+    branches: [ "main" ]
 
 env:
   REGISTRY: ghcr.io