Added wipeAppwriteBucket() Function using Ruby

[pikami]

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Summary

This PR adds an example for Ruby to wipe all files in an Appwrite bucket.

Screens

Bucket with existing files Executing function with payload Bucket after executing the function Function response Function response when passing a payload without bucket id

Ticket Link

Fixes https://github.com/appwrite/appwrite/issues/4139

[Meldiron]

Thank you so much for the PR 🤩. We're adding the hacktoberfest-accepted label to ensure this PR counts towards your Hacktoberfest contributions count. With that said, please stay active on this PR to address any comments once you receive a review. Happy Hacktoberfest! 🎃

[christyjacob4]

THANK YOU! All changes merged 🥳

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