fix lint error/warnings (#23333)

Summary:
Fix lint errors and warning, which might be a cause of various crashes on older Android OS, using Android Support Library.

```bash
./gradlew :ReactAndroid:lint
```

[Android] [Changed] - fix lint error/warnings
Pull Request resolved: https://github.com/facebook/react-native/pull/23333

Differential Revision: D14019322

Pulled By: mdvacca

fbshipit-source-id: 74c98da269c318cf3b114c8d9c876186369f2b8c

ReactAndroid/src/main/java/com/facebook/react/HeadlessJsTaskService.java

@@ -12,6 +12,7 @@ import javax.annotation.Nullable;
 import java.util.Set;
 import java.util.concurrent.CopyOnWriteArraySet;
 
+import android.annotation.SuppressLint;
 import android.app.Service;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -67,6 +68,7 @@ public abstract class HeadlessJsTaskService extends Service implements HeadlessJ
   /**
    * Acquire a wake lock to ensure the device doesn't go to sleep while processing background tasks.
    */
+  @SuppressLint("WakelockTimeout")
   public static void acquireWakeLockNow(Context context) {
     if (sWakeLock == null || !sWakeLock.isHeld()) {
       PowerManager powerManager =