pass data cloud query as body (#56)

* pass data cloud query as body

* update upsert

---------

Co-authored-by: Gurvinder Singh <gurvindersingh@salesforce.com>

Author: ekozilforce

src/sdk/data-cloud-api.ts

@@ -35,7 +35,7 @@ export class DataCloudApiImpl implements DataCloudApi {
       retry: {
         limit: 1,
       },
-      json: sql,
+      body: JSON.stringify({ sql }),
     };
     const response = await this.request.request(url, opts);
     return response as DataCloudQueryResponse;
@@ -72,7 +72,7 @@ export class DataCloudApiImpl implements DataCloudApi {
       retry: {
         limit: 1,
       },
-      json: data,
+      body: JSON.stringify(data),
     };
     const response = await this.request.request(url, opts);
     return response as DataCloudUpsertResponse;