Fix Thread border agent IDs encoded as hex

[jpelgrom]

Summary

Core border agent IDs use a hex-encoded string (length 32), whereas the app assumed 'normal' strings (length 16). Check to make sure we use the correct conversion.

Fixes:

08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: Thread update device failed
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: java.lang.IllegalArgumentException: Invalid length of the ID (length = 32, expectedLength = 16)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at com.google.android.gms.common.internal.Preconditions.checkArgument(com.google.android.gms:play-services-basement@@18.1.0:3)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at com.google.android.gms.threadnetwork.ThreadBorderAgent$Builder.<init>(com.google.android.gms:play-services-threadnetwork@@16.0.0:1)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at com.google.android.gms.threadnetwork.ThreadBorderAgent.newBuilder(com.google.android.gms:play-services-threadnetwork@@16.0.0:1)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at io.homeassistant.companion.android.thread.ThreadManagerImpl.importDatasetFromServer(ThreadManagerImpl.kt:175)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at io.homeassistant.companion.android.thread.ThreadManagerImpl$importDatasetFromServer$1.invokeSuspend(Unknown Source:18)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at kotlinx.coroutines.internal.ScopeCoroutine.afterResume(Scopes.kt:32)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:102)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:108)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at android.os.Handler.handleCallback(Handler.java:942)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at android.os.Handler.dispatchMessage(Handler.java:99)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at android.os.Looper.loopOnce(Looper.java:201)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at android.os.Looper.loop(Looper.java:288)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at android.app.ActivityThread.main(ActivityThread.java:7918)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at java.lang.reflect.Method.invoke(Native Method)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
08-28 22:33:07.782 19429 19429 E ThreadManagerImpl: 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)

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Link to pull request in Documentation repository

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