chore: simplify `GITHUB_TOKEN` env in project GitHub Action

.github/workflows/project.yml

@@ -9,10 +9,11 @@ jobs:
   add-to-project:
     name: Add to project
     runs-on: ubuntu-latest
+    env:
+      GITHUB_TOKEN: ${{ secrets.PROJECT_TOKEN }}
     steps:
       - name: Read project data
         env:
-          GITHUB_TOKEN: ${{ secrets.PROJECT_TOKEN }}
           ORGANIZATION: ohmyzsh
           PROJECT_NUMBER: "1"
         run: |
@@ -42,7 +43,6 @@ jobs:
 
       - name: Add to project
         env:
-          GITHUB_TOKEN: ${{ secrets.PROJECT_TOKEN }}
           ISSUE_ID: ${{ github.event.issue.node_id }}
           PR_ID: ${{ github.event.pull_request.node_id }}
         run: |
@@ -60,8 +60,6 @@ jobs:
 
       - name: Classify Pull Request
         if: github.event_name == 'pull_request_target'
-        env:
-          GITHUB_TOKEN: ${{ secrets.PROJECT_TOKEN }}
         run: |
           gh pr view ${{ github.event.pull_request.number }} --json files --jq '.files.[].path' | awk -F/ '
             /^plugins\// {
@@ -91,8 +89,6 @@ jobs:
 
       - name: Fill Pull Request fields in project
         if: github.event_name == 'pull_request_target'
-        env:
-          GITHUB_TOKEN: ${{ secrets.PROJECT_TOKEN }}
         run: |
           gh api graphql -f query='
             mutation (