fix(deps): update roomversion to v2.8.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
androidx.room:room-testing (source)	2.8.0 -> 2.8.3
androidx.room:room-compiler (source)	2.8.0 -> 2.8.3
androidx.room:room-runtime (source)	2.8.0 -> 2.8.3

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Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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[AndyScherzinger]

for reference and awareness @alperozturk96 @tobiasKaminsky nextcloud/talk-android#5424

[github-actions]

Codacy

SpotBugs

Category	Base	New
Bad practice	42	42
Correctness	73	73
Dodgy code	272	272
Experimental	1	1
Internationalization	7	7
Malicious code vulnerability	2	2
Multithreaded correctness	35	35
Performance	48	48
Security	18	18
Total	498	498

[github-actions]

APK file: https://www.kaminsky.me/nc-dev/android-artifacts/15687.apk



To test this change/fix you can simply download above APK file and install and test it in parallel to your existing Nextcloud app.