ci: add auto-release

.github/workflows/release-automated.yml

@@ -0,0 +1,29 @@
+name: release-automated
+on:
+  release:
+    types: [created]
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Publish dart package
+        if: ${{ startsWith(github.ref_name, 'dart') }}
+        uses: k-paxian/[email protected]
+        with:
+          accessToken: ${{ secrets.PUBDEV_GOOGLE_ACCOUNT_ACCESS_TOKEN  }}
+          refreshToken: ${{ secrets.PUBDEV_GOOGLE_ACCOUNT_REFRESH_TOKEN }}
+          relativePath: packages/dart
+          format: true
+          dryRunOnly: false
+      - name: Publish flutter package
+        if: ${{ startsWith(github.ref_name, 'flutter') }}
+        uses: k-paxian/[email protected]
+        with:
+          accessToken: ${{ secrets.PUBDEV_GOOGLE_ACCOUNT_ACCESS_TOKEN  }}
+          refreshToken: ${{ secrets.PUBDEV_GOOGLE_ACCOUNT_REFRESH_TOKEN }}
+          relativePath: packages/flutter
+          flutter: true
+          format: true
+          dryRunOnly: false

.github/workflows/release-manual.yml

@@ -1,4 +1,6 @@
-# Trigger this workflow to manually create a release of the flutter package.
+# Trigger this workflow only to manually create a dart/flutter release; this should only be used
+# in extraordinary circumstances, as dart/flutter releases are normally created automatically as
+# part of the automated release workflow.
 
 name: release-manual
 on: