chore(deps): remove memoffset dependency

[overlookmotel]

offset_of! macro became stable in Rust 1.77.0 which is now within our MSRV. Remove the memoffset crate, and use std::mem::offset_of instead.

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[overlookmotel]

• chore(deps): remove memoffset dependency #7573 👈 (View in Graphite)
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[codspeed-hq]

CodSpeed Performance Report

Merging #7573 will not alter performance

_{Comparing 12-01-chore_deps_remove_memoffset_dependency (e62153b) with main (79014ff)}

Summary

✅ 30 untouched benchmarks

[overlookmotel]

Merge activity

• Dec 1, 6:39 PM EST: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Dec 1, 6:39 PM EST: A user added this pull request to the Graphite merge queue.
• Dec 1, 6:43 PM EST: A user merged this pull request with the Graphite merge queue.

[overlookmotel]

Thanks for reviewing, @camc314.