chore(deps): update dependency gersemi to v0.28.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
gersemi	==0.27.7 → ==0.28.0

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Release Notes

BlankSpruce/gersemi (gersemi)

v0.28.0

Compare Source

Added

• Inline hints introduced by bracket comments: #[[gersemi: ...]. (#​119, #​120)

Fixed

• Added missing Cargo.lock for reproducible builds. (#​118)
• Handling of multibyte UTF-8 symbols. (#​126)

Changed

• Binaries are produced using older OS versions.
• More implementation ported to Rust.
• Drop some Python dependencies.

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