Restore adb executeShell [5/n]

Summary: Expose executeShell explicitly through the device interface

Reviewed By: jameslawson

Differential Revision: D31055959

fbshipit-source-id: b14395d0783ede265c6ae39c397ea93a85a78336

desktop/flipper-plugin/src/test-utils/test-utils.tsx

@@ -506,6 +506,7 @@ function createMockDevice(options?: StartPluginOptions): RealFlipperDevice & {
     addLogEntry(entry: DeviceLogEntry) {
       logListeners.forEach((f) => f?.(entry));
     },
+    executeShell: jest.fn(),
   };
 }