Enable automated plugin release (#130)

Author: basil

.github/release-drafter.yml

@@ -0,0 +1,19 @@
+# Note: additional setup is required, see https://www.jenkins.io/redirect/continuous-delivery-of-plugins
+---
+name: cd
+on:
+  workflow_dispatch:
+  check_run:
+    types:
+      - completed
+
+permissions:
+  checks: read
+  contents: write
+
+jobs:
+  maven-cd:
+    uses: jenkins-infra/github-reusable-workflows/.github/workflows/maven-cd.yml@v1
+    secrets:
+      MAVEN_USERNAME: ${{ secrets.MAVEN_USERNAME }}
+      MAVEN_TOKEN: ${{ secrets.MAVEN_TOKEN }}

.github/workflows/cd.yaml

@@ -1,2 +1,3 @@
 -Pconsume-incrementals
 -Pmight-produce-incrementals
+-Dchangelist.format=%d.v%s

.github/workflows/release-drafter.yml

@@ -9,16 +9,15 @@
   </parent>
 
   <artifactId>pubsub-light</artifactId>
-  <version>${revision}${changelist}</version>
+  <version>${changelist}</version>
   <packaging>hpi</packaging>
 
   <name>Jenkins Pub-Sub "light" Bus</name>
   <description>A simple Publish-Subscribe light-weight event bus for Jenkins</description>
   <url>https://github.com/jenkinsci/${project.artifactId}-plugin</url>
 
   <properties>
-    <revision>1.19</revision>
-    <changelist>-SNAPSHOT</changelist>
+    <changelist>999999-SNAPSHOT</changelist>
     <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
     <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
     <jenkins.baseline>2.361</jenkins.baseline>