Update case3 to test for sample configmaps.

Signed-off-by: Humair Khan <[email protected]>

Author: HumairAK

controllers/testdata/declarative/case_2/expected/created/sample-config.yaml.tmpl

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+    name: sample-config-testdsp2
+    namespace: default
+    labels:
+        app: ds-pipeline-testdsp2
+        component: data-science-pipelines
+data:
+    sample_config.json: |-
+        [
+          {
+            "name": "[Demo] iris-training",
+            "description": "[source code](https://github.com/opendatahub-io/data-science-pipelines/tree/master/samples/iris-training) A simple pipeline to demonstrate a basic ML Training workflow",
+            "file": "/samples/iris-pipeline-compiled.yaml"
+          }
+        ]