chore: update and fix workmanager observer

[jvh-aws]

• PR title and description conform to Pull Request guidelines.

Issue #, if available:

Description of changes: Follow up for #3264

Bumps androidx-workmanager from 2.9.1 to 2.11.2 (from #3264) and fixes the resulting compile error in TransferWorkerObserver.

WorkManager 2.11 pulls in androidx.lifecycle 2.6+, which rewrote Observer in Kotlin. The onChanged parameter nullability now matches the generic type, so MutableList? no longer compiles against Observer<MutableList>.

Changed TransferWorkerObserver to implement Observer<List> with a non-null onChanged parameter.

See https://developer.android.com/jetpack/androidx/releases/lifecycle#version_26_2

The nullability of the onChanged method of a Observer created in Kotlin now matches the nullability of the generic type. If you want Observer.onChanged() to accept a nullable type, you must instantiate the Observer with a nullable type.

How did you test these changes?
(Please add a line here how the changes were tested)

Documentation update required?

• No
• Yes (Please include a PR link for the documentation update)

General Checklist

• Added Unit Tests
• Added Integration Tests
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)
• Ensure commit message has the appropriate scope (e.g fix(storage): message, feat(auth): message, chore(all): message)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

❌ Patch coverage is 42.30769% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.91%. Comparing base (d6d9f52) to head (94d20d7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3305   +/-   ##
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  Coverage   55.91%   55.91%           
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  Files        1083     1083           
  Lines       31932    31926    -6     
  Branches     4760     4759    -1     
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- Hits        17854    17852    -2     
+ Misses      12222    12218    -4     
  Partials     1856     1856           

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[jvh-aws]

KTX call is equivalent to what we had before. See: https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:core/core/src/main/java/androidx/core/database/sqlite/SQLiteDatabase.kt?q=file:androidx%2Fcore%2Fdatabase%2Fsqlite%2FSQLiteDatabase.kt%20function:transaction