chore: do not use built version of circus in unit test (#13907)

Author: SimenB

packages/jest-circus/src/__mocks__/testUtils.ts

@@ -11,13 +11,9 @@ import * as path from 'path';
 import {ExecaSyncReturnValue, sync as spawnSync} from 'execa';
 import * as fs from 'graceful-fs';
 
-const CIRCUS_PATH = require.resolve('../../build').replace(/\\/g, '\\\\');
-const CIRCUS_RUN_PATH = require
-  .resolve('../../build/run')
-  .replace(/\\/g, '\\\\');
-const CIRCUS_STATE_PATH = require
-  .resolve('../../build/state')
-  .replace(/\\/g, '\\\\');
+const CIRCUS_PATH = require.resolve('../').replace(/\\/g, '\\\\');
+const CIRCUS_RUN_PATH = require.resolve('../run').replace(/\\/g, '\\\\');
+const CIRCUS_STATE_PATH = require.resolve('../state').replace(/\\/g, '\\\\');
 const TEST_EVENT_HANDLER_PATH = require
   .resolve('./testEventHandler')
   .replace(/\\/g, '\\\\');