chore(deps): update rust crate regex to v1.12.3

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This PR contains the following updates:

Package	Type	Update	Change
regex	dependencies	patch	1.12.2 → 1.12.3

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Release Notes

rust-lang/regex (regex)

v1.12.3

Compare Source

===================
This release excludes some unnecessary things from the archive published to
crates.io. Specifically, fuzzing data and various shell scripts are now
excluded. If you run into problems, please file an issue.

Improvements:

• #​1319:
  Switch from a Cargo exclude list to an include list, and exclude some
  unnecessary stuff.

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