chore: Fix experiments charts for 3.0.0 (#613)

* adds metadata.annotation in chaosengine and replaces install-chaos-faults step to use artifacts.data.raw manifests

Signed-off-by: neelanjan00 <neelanjan.manna@harness.io>

* fixes annotation -> annotations

Signed-off-by: neelanjan00 <neelanjan.manna@harness.io>

* updates labels

Signed-off-by: neelanjan00 <neelanjan.manna@harness.io>

---------

Signed-off-by: neelanjan00 <neelanjan.manna@harness.io>

experiments/pod-memory-hog/experiment.yaml

@@ -87,7 +87,7 @@ spec:
 
                       ## Period to wait before and after injection of chaos in sec
                       - name: RAMP_TIME
-                        value: ''     
+                        value: ''
 
                       - name: TARGET_POD
                         value: ''
@@ -116,6 +116,7 @@ spec:
                   namespace: {{workflow.parameters.adminModeNamespace}}
                   labels:
                     context: "{{workflow.parameters.appNamespace}}_kube-proxy"
+                  annotations: {}
                 spec:
                   appinfo:
                     appns: kube-system