Update helm chart version to 1.2.0 (open-edge-platform#192)

Co-authored-by: ganesanintel <[email protected]>

Author: avinash-palleti

sample-applications/chat-question-and-answer-core/chart/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: chat-question-and-answer-core
 description: A Helm chart for deploying chatqna-core and its UI
-version: 1.1.2
+version: 1.2.0
 appVersion: "1.0"
 dependencies:
   - name: chatqna-ui

sample-applications/chat-question-and-answer/chart/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: chat-question-and-answer
 description: A helm chart for deploying Intel ChatQnA sample application
-version: 1.1.2
+version: 1.2.0
 dependencies:
   - name: vllmService
     version: 0.1.0
@@ -40,4 +40,4 @@ dependencies:
     repository: "file://subchart/reranker"
   - name: chatqna-ui
     version: 0.1.0
-    repository: "file://subchart/chatqna-ui"
+    repository: "file://subchart/chatqna-ui"