Bump rxjava from 3.0.13 to 3.1.0

Bumps rxjava from 3.0.13 to 3.1.0.

Release notes

Sourced from rxjava's releases.

3.1.0

Maven JavaDocs

⚠ With this release, the minimum required Android API level is API 21 (Android 5.0).

⚠ Note that the 3.0.x patch line won't be developed further.

API promotions

• Flowable.onBackpressureReduce() + 1 (#7296)
• RxJavaPlugins.getOnParallelSubscribe() and RxJavaPlugins.setOnParallelSubscribe() (#7296)
• TestScheduler([...] boolean useOnScheduleHook) (#7296)

API additions

• subscribe([...], DisposableContainer) for better Disposable management and reference cleanup. (#7298)
• RxJavaPlugins.createExecutorScheduler() for creating an Executor-based Scheduler before the Schedulers class (and thus the standard schedulers) gets initialized. (#7306)

Behavior changes

• The scheduler purge thread has been removed. Removing cancelled timed operations is now managed by the setRemoveOnCancelPolicy of the underlying ScheduledExecutorService. (#7293)

Documentation

• Fixed wording of the fair parameter of Schedulers.from. (#7301)
• Update withLatestFrom javadoc about upstream early complete (#7289)

Other

• @NonNull annotations on generic type arguments were made consistent across. (#7302, #7303)

Commits

• 38341b5 Bump gradle to 7.1.1 (#7307)
• 5b0dd58 3.x: Add RxJavaPlugins.createExecutorScheduler (#7306)
• e24e725 Bump codecov/codecov-action from 2.0.1 to 2.0.2 (#7304)
• 40ca8ef 3.x: Move nullability annotations into the type argument declaration (#7303)
• 75e7e50 Fix missing NonNull on Observable.map (#7302)
• bb814d2 3.x: Javadocs fix some wording in Schedulers.java (#7301)
• a463d24 Bump codecov/codecov-action from 1.5.2 to 2.0.1 (#7299)
• 66fd701 3.x: Add subscribe with disposable container (#7298)
• a9e0a8a 3.x: API promotions for 3.1.0 (#7296)
• 3330943 Removes the purge thread in favor of standard ScheduledThreadPoolExecutor API...
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