Added publish CI

Author: Menecats

.github/workflows/gradle-publish.yml

@@ -0,0 +1,21 @@
+# This is a basic workflow to help you get started with Actions
+
+name: Publish package
+
+on:
+  release:
+    types: [created]
+  workflow_dispatch:
+  
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Publish package
+        run: gradle publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}