Fix spec shows source archive is not used (#1448)

test/tests/test_specs/test_spec_archive/specs/env-node.yaml

@@ -0,0 +1,16 @@
+apiVersion: fission.io/v1
+kind: Environment
+metadata:
+  creationTimestamp: null
+  name: dummyfoobarnode
+  namespace: default
+spec:
+  builder:
+    command: build
+    image: fission/node-builder:1.6.0
+  keeparchive: false
+  poolsize: 3
+  runtime:
+    image: fission/node-env:1.6.0
+  terminationGracePeriod: 20
+  version: 2