[Microsoft.LoadTestService] Improvements to Load Test Service DataPlane Specs for better SDK Generation (#32418)

* Fixing missed property for parameter type change

Author: mitsha-microsoft

specification/loadtestservice/LoadTestService/models.testprofile.tsp

@@ -264,7 +264,7 @@ model ListTestProfileQueryParams {
 
   @doc("Comma separated list IDs of the tests which should be associated with the test profiles to fetch.")
   @query(#{ explode: false })
-  testIds?: string;
+  testIds?: string[];
 }
 
 @doc("Parameters for list test profile run operation")

specification/loadtestservice/data-plane/Microsoft.LoadTestService/preview/2024-05-01-preview/loadtestservice.json

@@ -5128,7 +5128,11 @@
       "in": "query",
       "description": "Comma separated list IDs of the tests which should be associated with the test profiles to fetch.",
       "required": false,
-      "type": "string",
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "collectionFormat": "csv",
       "x-ms-parameter-location": "method"
     },
     "ListTestProfileQueryParams.testProfileIds": {

specification/loadtestservice/data-plane/Microsoft.LoadTestService/preview/2024-07-01-preview/loadtestservice.json

@@ -6215,7 +6215,11 @@
       "in": "query",
       "description": "Comma separated list IDs of the tests which should be associated with the test profiles to fetch.",
       "required": false,
-      "type": "string",
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "collectionFormat": "csv",
       "x-ms-parameter-location": "method"
     },
     "ListTestProfileQueryParams.testProfileIds": {

specification/loadtestservice/data-plane/Microsoft.LoadTestService/preview/2024-12-01-preview/loadtestservice.json

@@ -6900,7 +6900,11 @@
       "in": "query",
       "description": "Comma separated list IDs of the tests which should be associated with the test profiles to fetch.",
       "required": false,
-      "type": "string",
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "collectionFormat": "csv",
       "x-ms-parameter-location": "method"
     },
     "ListTestProfileQueryParams.testProfileIds": {