Revert "Use just-in-time access token for checking CLA (#3985)"

This reverts commit df52506.

.github/workflows/cla.yml

@@ -14,19 +14,6 @@ permissions:
 
 jobs:
   RequireCLA:
-    steps:
-      # Generate an access token; used to access the repository hosting the set
-      # of known CLA signatures
-      - name: Create access token
-        uses: actions/create-github-app-token@v1
-        id: app-token
-        with:
-          app-id: ${{ vars.POSITRON_BOT_APP_ID }}
-          private-key: ${{ secrets.POSITRON_BOT_PRIVATE_KEY }}
-          owner: ${{ github.repository_owner }}
-
-      # Validate that the CLA has been signed by the author(s)
-      - name: Validate CLA signatures
-        uses: posit-dev/cla-assistant/.github/workflows/posit-cla.yml@v1
-        secrets:
-          CLA_ASSISTANT_PAT: ${{ steps.app-token.outputs.token }}
+    uses: posit-dev/cla-assistant/.github/workflows/posit-cla.yml@v1
+    secrets:
+      CLA_ASSISTANT_PAT: ${{ secrets.CLA_ASSISTANT_PAT }}