Change App Signals Directory (#650)

Author: harrryr

.github/workflows/appsignals-e2e-eks-test.yml

@@ -297,6 +297,7 @@ jobs:
       - name: Clean Up App Signals
         if: always()
         continue-on-error: true
+        working-directory: testing/terraform/eks
         run: |
           ./clean-app-signals.sh \
           ${{ inputs.test-cluster-name }} \