Add ready-to-merge-label

[lucas-zimerman]

based on: getsentry/sentry-react-native#5338

Add a special label like iOS (https://github.com/getsentry/sentry-cocoa/pull/6686) to prevent all CI checks from running all the time.

[linear]

CAPA-62

[github-actions]

This issue has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you label it Status: Backlog or Status: In Progress, I will leave it alone ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀