Update dependency io.reactivex.rxjava3:rxjava to v3.1.6#9

wada811 merged 1 commit intomasterwada811/LifecycleDispose:masterfrom

renovate/io.reactivex.rxjava3-rxjava-3.xwada811/LifecycleDispose:renovate/io.reactivex.rxjava3-rxjava-3.xCopy head branch name to clipboard