ci: add release please and remove old workflow (ethereum#250)

Author: dionysuzx

.github/workflows/openai-review.yml

@@ -0,0 +1,18 @@
+name: Release Please
+
+on:
+  push:
+    branches:
+      - taiko
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: googleapis/release-please-action@v4
+        with:
+          release-type: simple