Update add-to-project.yml

Remove permission because a separate secrets.ADD_TO_PROJECT_PAT is used to add to project

Author: sashashura

.github/workflows/add-to-project.yml

@@ -12,8 +12,6 @@ on:
 permissions: {}
 jobs:
   add-to-project:
-    permissions:
-      repository-projects: write # to add to projects (actions/add-to-project)
     name: Add new bugs and PRs to This Week project
     runs-on: ubuntu-latest
     steps: