refreshToken() returns old registration token on Android

[kashz]

Describe the bug

refreshToken() returns a registration token before refresh.
This may be because getToken() was called without waiting for it to be deleted.

fcm/android/src/main/java/com/getcapacitor/community/fcm/FCMPlugin.java

Lines 86 to 94 in db4ac46

	public void refreshToken(final PluginCall call) {
	FirebaseMessaging.getInstance().deleteToken();
	FirebaseMessaging.getInstance().getToken().addOnCompleteListener(getActivity(), tokenResult -> {
	JSObject data = new JSObject();
	data.put("token", tokenResult.getResult());
	call.resolve(data);
	});
	FirebaseMessaging.getInstance().getToken().addOnFailureListener(e -> call.reject("Failed to get FCM registration token", e));
	}

Expected behavior
Always return new registration token.