Increase timeout on Windows to 25s in previously missed locations

Most of the timeouts for tests are the mocha timeouts, but DebugClient
has its own timeout values. This change synchronizes those values.

This increased timeout is specifically needed for the attachRemote
test which takes more than 5 seconds to do the initial connection
on the GitHub actions build regularly.

This is a follow up to commit 3708cea
part of #222

.mocharc-windows-ci.json

@@ -1,3 +1,4 @@
 {
+  "//": "This timeout should match what is in CdtDebugClient constructor",
   "timeout": "25000"
 }

.mocharc.json

@@ -1,3 +1,4 @@
 {
+  "//": "This timeout should match what is in CdtDebugClient constructor",
   "timeout": "5000"
 }

src/integration-tests/debugClient.ts

@@ -12,6 +12,7 @@ import { DebugClient } from '@vscode/debugadapter-testsupport';
 import { DebugProtocol } from '@vscode/debugprotocol';
 import * as path from 'path';
 import { defaultAdapter } from './utils';
+import * as os from 'os';
 
 export type ReverseRequestHandler<
     A = any,
@@ -51,6 +52,8 @@ export class CdtDebugClient extends DebugClient {
         if (extraArgs) {
             this._cdt_args.push(...extraArgs);
         }
+        // These timeouts should match what is in .mocharc.json and .mocharc-windows-ci.json
+        this.defaultTimeout = os.platform() === 'win32' ? 25000 : 5000;
     }
 
     /**