ci: remove add-to-project.yml

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

@@ -1,24 +0,0 @@
-name: Add to GitHub projects
-
-on:
-  issues:
-    types:
-      - opened
-  pull_request_target:
-    types:
-      - opened
-      - reopened
-
-jobs:
-  add-to-project:
-    name: Add issues and pull requests
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/add-to-project@v0.4.0
-        with:
-          # You can target a repository in a different organization
-          # to the issue
-          project-url: https://github.com/orgs/toeverything/projects/10
-          github-token: ${{ secrets.ADD_TO_PROJECT_PAT }}
-          # labeled: bug, needs-triage
-          # label-operator: OR