Create IntegrityService stub

fake-store/src/main/AndroidManifest.xml

@@ -32,6 +32,14 @@
             </intent-filter>
         </service>
 
+        <service android:name="com.google.android.play.core.integrityservice.IntegrityService"
+                 android:visibleToInstantApps="true"
+                 android:exported="true">
+            <intent-filter>
+                <action android:name="com.google.android.play.core.integrityservice.BIND_INTEGRITY_SERVICE"/>
+            </intent-filter>
+        </service>
+
         <service
             android:name="com.android.vending.licensing.LicensingService"
             android:exported="true">

fake-store/src/main/aidl/com/google/android/play/core/integrityservice/IIntegrityService.aidl

@@ -0,0 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2023 microG Project Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.google.android.play.core.integrityservice;
+
+interface IIntegrityService {
+
+}

fake-store/src/main/java/com/google/android/play/core/integrityservice/IntegrityService.java

@@ -0,0 +1,21 @@
+/*
+ * SPDX-FileCopyrightText: 2023 microG Project Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.google.android.play.core.integrityservice;
+
+import android.app.Service;
+import android.content.Intent;
+import android.os.IBinder;
+
+public class IntegrityService extends Service {
+
+    private final IIntegrityService.Stub mIntegrityService = new IIntegrityService.Stub() {
+
+    };
+
+    public IBinder onBind(Intent intent) {
+        return mIntegrityService;
+    }
+}