👷 Add publish workflow

Author: AlexV525

.github/workflows/publish.yml

@@ -0,0 +1,20 @@
+name: Publish
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Dart and Flutter Package Publisher
+        uses: k-paxian/dart-package-publisher@master
+        with:
+          credentialJson: ${{ secrets.CREDENTIAL_JSON }}
+          force: true
+          skipTests: true
+          suppressBuildRunner: true