chore: remove unused Slack announce job, add issues:write permission (#30)

Made-with: Cursor

Author: jack-arturo

.github/workflows/release-please.yml

@@ -28,6 +28,7 @@ on:
 
 permissions:
   contents: write
+  issues: write
   pull-requests: write
 
 jobs:
@@ -90,19 +91,3 @@ jobs:
         with:
           tag_name: ${{ needs.release-please.outputs.tag_name }}
           files: "*.mcpb"
-
-  announce:
-    needs: [release-please, npm-publish]
-    if: ${{ needs.release-please.outputs.release_created }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Post to Slack
-        if: ${{ vars.SLACK_WEBHOOK_URL }}
-        uses: slackapi/slack-github-action@v1
-        with:
-          webhook-url: ${{ vars.SLACK_WEBHOOK_URL }}
-          webhook-type: incoming-webhook
-          payload: |
-            {
-              "text": "🚀 ${{ github.repository }} ${{ needs.release-please.outputs.tag_name }} released!\n\nhttps://github.com/${{ github.repository }}/releases/tag/${{ needs.release-please.outputs.tag_name }}"
-            }