Missing onError handler in subscribe() method call

### Before opening, please confirm:

- [X] I have [searched for duplicate or closed issues](https://github.com/aws-amplify/amplify-android/issues?q=is%3Aissue+) and [discussions](https://github.com/aws-amplify/amplify-android/discussions).

### Language and Async Model

Java

### Amplify Categories

GraphQL API, DataStore

### Gradle script dependencies

```groovy
implementation 'com.amplifyframework:aws-api:2.14.11'
implementation 'com.amplifyframework:aws-datastore:2.14.11'
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'

```

### Environment information

```
------------------------------------------------------------
Gradle 8.0
------------------------------------------------------------

Build time: 2023-02-13 13:15:21 UTC
Revision: 62ab9b7c7f884426cf79fbedcf07658b2dbe9e97

Kotlin: 1.8.10
Groovy: 3.0.13
Ant: Apache Ant(TM) version 1.10.11 compiled on July 10 2021
JVM: 17.0.6 (JetBrains s.r.o. 17.0.6+0-b2043.56-10027231)
OS: Windows 10 10.0 amd64

```

### Please include any relevant guides or documentation you're referencing

_No response_

### Describe the bug

Since I have included Amplify in our production app on Android, I'm seeing a significant amount of `java.util.concurrent.TimeoutException` crashes with the crash message: "The source did not signal an event for 5000 milliseconds and has been terminated."
Full error message: "The exception was not handled due to missing onError handler in the subscribe() method call. Further reading: https://github.com/ReactiveX/RxJava/wiki/Error-Handling | java.util.concurrent.TimeoutException: The source did not signal an event for 5000 milliseconds and has been terminated."

This crash already occurred for ~2% of my users, which is quite significant since usually our crash rate is below 0.3%. Is there perhaps an issue in my implementation, or could this be an issue with the Amplify library? (it does mention "missing onError handler in the subscribe() method call") I'm using the DataStore and GraphQL subscriptions, I'll provide a code snippet of the way I use Amplify below.

P.S. Interestingly, I saw a similar crash happening on [this GitHub issue](https://github.com/aws-amplify/amplify-android/issues/688) from 2020

### Full stack trace (if helpful)
```
Fatal Exception: kf.e
The exception was not handled due to missing onError handler in the subscribe() method call. Further reading: https://github.com/ReactiveX/RxJava/wiki/Error-Handling | java.util.concurrent.TimeoutException: The source did not signal an event for 5000 milliseconds and has been terminated.
io.reactivex.rxjava3.internal.observers.CallbackCompletableObserver.accept (CallbackCompletableObserver.java:47)
io.reactivex.rxjava3.internal.observers.CallbackCompletableObserver.accept (CallbackCompletableObserver.java:26)
io.reactivex.rxjava3.internal.observers.CallbackCompletableObserver.onError (CallbackCompletableObserver.java:64)
io.reactivex.rxjava3.internal.operators.completable.CompletablePeek$CompletableObserverImplementation.onError (CompletablePeek.java:95)
io.reactivex.rxjava3.internal.operators.completable.CompletablePeek$CompletableObserverImplementation.onError (CompletablePeek.java:95)
io.reactivex.rxjava3.internal.operators.completable.CompletableSubscribeOn$SubscribeOnObserver.onError (CompletableSubscribeOn.java:74)
io.reactivex.rxjava3.internal.operators.completable.CompletableTimeout$DisposeTask.run (CompletableTimeout.java:109)
io.reactivex.rxjava3.internal.schedulers.ScheduledDirectTask.call (ScheduledDirectTask.java:41)
io.reactivex.rxjava3.internal.schedulers.ScheduledDirectTask.call (ScheduledDirectTask.java:28)
java.util.concurrent.FutureTask.run (FutureTask.java:264)
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run (ScheduledThreadPoolExecutor.java:307)
java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:644)
java.lang.Thread.run (Thread.java:1012)

Caused by java.util.concurrent.TimeoutException
The source did not signal an event for 5000 milliseconds and has been terminated.
io.reactivex.rxjava3.internal.operators.completable.CompletableTimeout$DisposeTask.run (CompletableTimeout.java:109)
io.reactivex.rxjava3.internal.schedulers.ScheduledDirectTask.call (ScheduledDirectTask.java:41)
io.reactivex.rxjava3.internal.schedulers.ScheduledDirectTask.call (ScheduledDirectTask.java:28)
java.util.concurrent.FutureTask.run (FutureTask.java:264)
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run (ScheduledThreadPoolExecutor.java:307)
java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:644)
java.lang.Thread.run (Thread.java:1012)
```

### GraphQL schema
```
input AMPLIFY { globalAuthRule: AuthRule = { allow: public } } # FOR TESTING ONLY!

enum UnblockStatus {
inProgress
cancelled
success
error
}

type UnblockRequest @model @auth(rules: [{ allow: public }]) {
id: ID!
userEmail: String!
barrier: String!
barrierDifficulty: Int!
timestamp: AWSTimestamp!
}

type UnblockResult @model @auth(rules: [{ allow: public }]) {
id: ID!
userEmail: String!
timestamp: AWSTimestamp!
unblockStatus: UnblockStatus!
}
```

### Reproduction steps (if applicable)

_No response_

### Code Snippet

```java
// This is the relevant code where I send / update data

public void sendUnblockResult(Context context, UnblockStatus unblockStatus) {
UnblockResult unblockResult = UnblockResult.builder()
.userEmail(AppConfig.getInstance(context).getUser().getEmail())
.timestamp(Temporal.Timestamp.now())
.unblockStatus(unblockStatus)
.build();
Amplify.DataStore.save(unblockResult,
success -> {
Log.i(AMPLIFY_DEBUG_TAG, "Saved item: " + success.item());
setLatestUnblockResultId(context, success.item().getId());
},
error -> Log.e(AMPLIFY_DEBUG_TAG, "Could not save item to DataStore", error)
);
}

public void updateUnblockStatus(Context context, UnblockStatus unblockStatus) {
String unblockId = getLatestUnblockId(context);
Amplify.DataStore.query(UnblockResult.class, Where.matches(UnblockResult.ID.eq(unblockId)),
matches -> {
if (matches.hasNext()) {
UnblockResult unblockResult = matches.next();
UnblockResult updatedUnblockResult = unblockResult.copyOfBuilder()
.unblockStatus(unblockStatus)
.timestamp(Temporal.Timestamp.now())
.build();
Amplify.DataStore.save(updatedUnblockResult,
updated -> Log.i(AMPLIFY_DEBUG_TAG, "Updated unblock result: " + updatedUnblockResult),
failure -> Log.e(AMPLIFY_DEBUG_TAG, "Update failed.", failure)
);
}
},
failure -> {
Log.e(AMPLIFY_DEBUG_TAG, "Update failed.", failure);
}
);
}

// And this is how I subscribe to updates, from my MainActivity
Amplify.DataStore.observe(UnblockRequest.class,
cancelable -> Log.i(AmplifyManager.AMPLIFY_DEBUG_TAG, "Observation began."),
unblockRequestChanged -> {
// Do some stuff
},
failure -> Log.e(AmplifyManager.AMPLIFY_DEBUG_TAG, "Observation failed", failure),
() -> Log.i(AmplifyManager.AMPLIFY_DEBUG_TAG, "Observation complete")
);

```

### Log output

```
// Put your logs below this line

```

### amplifyconfiguration.json

_No response_

### GraphQL Schema

```graphql
// Put your schema below this line

```

### Additional information and screenshots

_No response_