chore(workflows): 🔧 update permissions and scopes in workflow files

- add permissions for issues and pull requests in auto-assign.yml
- extend scopes in pr-validation.yml for better coverage

Author: baxyz

.github/workflows/auto-assign.yml

@@ -6,6 +6,10 @@ on:
   pull_request:
     types: [opened]
 
+permissions:
+  issues: write
+  pull-requests: write
+
 jobs:
   auto-assign:
     runs-on: ubuntu-latest

.github/workflows/pr-validation.yml

@@ -19,7 +19,7 @@ jobs:
         uses: helpers4/action/conventional-commits@main
         with:
           checkout: "true"
-          scopes: "angular-dev|auto-header|essential-dev|git-absorb|local-mounts|package-auto-install|peon-ping|shell-history-per-project|typescript-dev|vite-plus|CI-CD"
+          scopes: "angular-dev|auto-header|essential-dev|git-absorb|local-mounts|package-auto-install|peon-ping|shell-history-per-project|typescript-dev|vite-plus|deps|CI-CD"
           pr-comment: "error"
 
       - name: Set status