Update add_to_project.yml

Signed-off-by: Johannes Demer <48685701+jtdemer@users.noreply.github.com>

.github/workflows/add_to_project.yml

@@ -7,13 +7,20 @@ on:
   pull_request_target:
     types:
       - opened
+      - synchronize
+      - reopened
 
 jobs:
   add-to-project:
     name: Add issue or pull request to project
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/add-to-project@v0.5.0
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          token: ${{ secrets.ADD_TO_PROJECT_PAT }}
+      - name: Add to project
+        uses: actions/add-to-project@v0.5.0
         with:
           project-url: https://github.com/orgs/openMSL/projects/1
           github-token: ${{ secrets.ADD_TO_PROJECT_PAT }}