✅ update workflows

Author: ChunhThanhDe

.github/workflows/auto_asign.yaml

@@ -0,0 +1,19 @@
+name: Auto Assign
+on:
+  issues:
+    types: [opened]
+  pull_request:
+    types: [opened]
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+    - name: 'Auto-assign issue'
+      uses: pozil/auto-assign-issue@v1
+      with:
+          repo-token: ${{ secrets.GH_TOKEN }}
+          assignees: ChunhThanhDe
+          numOfAssignee: 1

.github/workflows/sync_labels.yaml

@@ -0,0 +1,33 @@
+
+name: ♻️ Sync Labels
+
+on:
+  push:
+    paths:
+      - .github/labels.yml
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  labels:
+    name: ♻️ Sync labels
+    runs-on: ubuntu-20.04
+    permissions:
+      issues: write
+      contents: read
+    steps:
+      - name: ⤵️ Check out code from GitHub
+        uses: actions/checkout@v4
+
+      - name: 🚀 Run Label Sync
+        uses: srealmoreno/label-sync-action@v2
+        with:
+          config-file: https://raw.githubusercontent.com/Flutter-Journey/.github/main/.github/labels.yml
+
+      - name: 🚀 Run Label Sync (Local)
+        if: ${{ hashFiles('.github/labels.yml') }}
+        uses: srealmoreno/label-sync-action@v2
+        with:
+          config-file: .github/labels.yml
+