Update Deployment end to end test config / values file.

Author: Kami

ci/deployment-agent-values.yaml

@@ -11,3 +11,11 @@ scalyr:
   config:
     # ci/examples/agent.d/test-config.json
     test-config.json: e3NlcnZlcl9hdHRyaWJ1dGVzOiB7YXR0cmlidXRlMTogInZhbHVlMSIsYXR0cmlidXRlMjogInZhbHVlMiIsfSx9
+
+volumes:
+  - name: test-volume
+    emptyDir: {}
+
+volumeMounts:
+  - mountPath: /test-volume
+    name: test-volume