chore: move cts specs

Author: eunjae-lee

tests/CTS/templates/java/requests.mustache renamed to tests/CTS/integration/.gitkeep

@@ -19,7 +19,7 @@ async function loadRequestsCTS(client: string): Promise<CTSBlock[]> {
 
   const ctsClient: CTSBlock[] = [];
 
-  for await (const file of walk(`./CTS/clients/${client}/requests`)) {
+  for await (const file of walk(`./CTS/methods/requests/${client}`)) {
     if (!file.name.endsWith('json')) {
       continue;
     }

tests/CTS/clients/abtesting/requests/addABTests.json renamed to tests/CTS/methods/requests/abtesting/addABTests.json

@@ -2,6 +2,6 @@ import fsp from 'fs/promises';
 
 export async function loadRequestsTemplate(language: string): Promise<string> {
   return (
-    await fsp.readFile(`CTS/templates/${language}/requests.mustache`)
+    await fsp.readFile(`CTS/methods/templates/${language}/requests.mustache`)
   ).toString();
 }