fix(auth, android): Fix crash on Android where detaching from engine.

[note11g]

Description

Fix crash on Android where detaching from engine.

Related Issues

fix #11291

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[Lyokone]

Could your sign the CLA @note11g ?

[note11g]

@Lyokone I signed to the CLA after the warning appeared above. (rescaned. cla status changed.)

[Lyokone]

Thanks for your contribution :)