Updated Post APIs OperationId (#29183)

* Updated Post APIs OperationId

* Updated operationId for Discovery Solutions NLP APIs

Author: siddiavinashmsft

specification/help/resource-manager/Microsoft.Help/preview/2024-03-01-preview/help.json

@@ -77,7 +77,7 @@
           "checkNameAvailability"
         ],
         "description": "This API is used to check the uniqueness of a resource name used for a diagnostic, troubleshooter or solutions",
-        "operationId": "CheckNameAvailability_Post",
+        "operationId": "CheckNameAvailability_CheckAvailability",
         "parameters": [
           {
             "$ref": "#/parameters/ScopeParameter"
@@ -817,7 +817,7 @@
           "discoverSolutions"
         ],
         "description": "Search for relevant Azure Diagnostics, Solutions and Troubleshooters using a natural language issue summary.",
-        "operationId": "DiscoverySolutionNLPTenantScope_Post",
+        "operationId": "DiscoverySolutionNLP_DiscoverSolutions",
         "parameters": [
           {
             "$ref": "#/parameters/ApiVersionParameter"
@@ -858,7 +858,7 @@
           "discoverSolutions"
         ],
         "description": "Search for relevant Azure Diagnostics, Solutions and Troubleshooters using a natural language issue summary and subscription.",
-        "operationId": "DiscoverySolutionNLPSubscriptionScope_Post",
+        "operationId": "DiscoverySolutionNLP_DiscoverSolutionsBySubscription",
         "parameters": [
           {
             "$ref": "#/parameters/SubscriptionIdParameter"