Deploy snapshots for 3.x branch

Author: slawekjaranowski

.github/workflows/maven.yml

@@ -23,3 +23,11 @@ jobs:
   build:
     name: Build it
     uses: codehaus-plexus/.github/.github/workflows/maven.yml@master
+
+  deploy:
+    name: Deploy
+    needs: build
+    uses: codehaus-plexus/.github/.github/workflows/maven-deploy.yml@master
+    with:
+      branch-to-deploy: 'refs/heads/3.x'
+    secrets: inherit