Remove generational-arena from project #20863
Description
Is your feature request related to a problem or challenge?
Followup on #20862
Crate: generational-arena
Version: 0.2.9
Warning: unmaintained
Title: `generational-arena` is unmaintained
Date: 2024-02-11
ID: RUSTSEC-2024-0014
URL: https://rustsec.org/advisories/RUSTSEC-2024-0014
Describe the solution you'd like
No response
Describe alternatives you've considered
No response
Additional context
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