ci: Use a GitHub App for chatops token (#316)

Co-authored-by: Sebastian Czech <[email protected]>

.github/workflows/chatops.yml

@@ -33,12 +33,21 @@ jobs:
             })
             console.log(pr.data.head.ref)
             return pr.data.head.ref
-            
+      
+      - name: Generate GitHub token
+        id: generate-token
+        uses: tibdex/github-app-token@v2
+        with:
+          app_id: ${{ secrets.CHATOPS_APP_ID }}
+          private_key: ${{ secrets.CHATOPS_APP_PRIVATE_KEY }}
+          installation_retrieval_mode: id
+          installation_retrieval_payload: ${{ secrets.CHATOPS_APP_INSTALLATION_ID }}          
+
       - name: "dispatch test command on branch: ${{ steps.pr.outputs.result }}"
         id: scd
         uses: peter-evans/slash-command-dispatch@v3
         with:
-          token: ${{ secrets.CHATOPS }}
+          token: ${{ steps.generate-token.outputs.token }}
           issue-type: pull-request
           dispatch-type: workflow
           permission: maintain
@@ -74,4 +83,4 @@ jobs:
             > ChatOPS run cancelled.
             > See [job run log](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) for details.
           reactions: 'confused'
-          reactions-edit-mode: replace
+          reactions-edit-mode: replace