Bug 1818981 - [devtools] Wait a little longer for the browser_dbg-project-search.js test r=devtools-reviewers,nchevobbe

Differential Revision: https://phabricator.services.mozilla.com/D172647

devtools/client/debugger/test/mochitest/browser_dbg-project-search.js

@@ -6,6 +6,8 @@
 
 "use strict";
 
+requestLongerTimeout(3);
+
 add_task(async function testOpeningAndClosingEmptyProjectSearch() {
   const dbg = await initDebugger(
     "doc-script-switching.html",