Reuse plexus-pom action for CI

Author: slachiewicz

.github/workflows/maven.yml

@@ -20,7 +20,12 @@ name: GitHub CI
 on: [push, pull_request]
 
 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
+    secrets: inherit