[Test] Alter mocha timeout (#1714)

This commit alter mocha timeout from 2000(default) to 10000 ms.
It's to prevent timeout failure during test.

ONE-vscode-DCO-1.0-Signed-off-by: Dayoung Lee <[email protected]>

Author: dayo09

src/Tests/index.ts

@@ -98,6 +98,7 @@ export async function run(): Promise<void> {
     ui: "tdd",
     color: true,
     fgrep: testFilter,
+    timeout: 10000,
   };
 
   const runner = new Mocha(mochaOpts);