chore: move publishing step to a separate workflow (open-feature#41)

Signed-off-by: Michael Beemer <[email protected]>

Author: beeme1mr

.github/workflows/publish.yaml

@@ -0,0 +1,19 @@
+name: Publish to pub.dev
+
+on:
+  push:
+    tags:
+    - 'v[0-9]+.[0-9]+.[0-9]+' # tag pattern on pub.dev: 'v{{version}'
+
+jobs:
+  publish:
+    permissions:
+      id-token: write # Required for authentication using OIDC
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dart-lang/setup-dart@v1
+      - name: Install dependencies
+        run: dart pub get
+      - name: Publish
+        run: dart pub publish --force

.github/workflows/release.yaml

@@ -33,18 +33,4 @@ jobs:
       release_tag_name: ${{ steps.release.outputs.tag_name }}
       upload_url: ${{ steps.release.outputs.upload_url }}
 
-  dart-release:
-    needs: release-please
-    if: ${{ fromJSON(needs.release-please.outputs.release_created || false) }}
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      id-token: write # Required for authentication using OIDC
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - uses: dart-lang/setup-dart@v1
-      - name: Install dependencies
-        run: dart pub get
-      - name: Publish
-        run: dart pub publish --force
+# Publishing is handled in publish.yaml