Update RubyGems to 3.2.33

What does this MR do and why?

Update RubyGems to 3.2.33

This is in attempt to address !90487 (comment 998489659)

Specifying RubyGems version is added at gitlab-build-images!553 (merged)

Updating in Omnibus at omnibus-gitlab!6174 (closed)

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