Adding maven build

Author: twerthi

.github/workflows/OctoSubscriber-GHA-Maven.yml

@@ -94,3 +94,15 @@ jobs:
           files: |
             **/*
 
+      - name: Push process-message package to Maven feed
+        run: |
+          mvn deploy:deploy-file `
+          --batch mode `
+          "-DgroupId=com.octopus" `
+          "-DartifactId=OctopusSamples.process-message" `
+          "-Dversion=${{ env.PACKAGE_VERSION }}" `
+          "-Dpackaging=zip" `
+          "-Dfile=${{ github.workspace }}/artifacts/OctopusSamples.process-message.${{ env.PACKAGE_VERSION }}.zip" `
+          "-DrepositoryId=octopus-sales-public-release" `
+          "-Durl=s3://octopus-sales-public-maven-repo/snapshot" `
+        shell: pwsh