chore(deps): bump regex from 1.6.0 to 1.7.0

Bumps regex from 1.6.0 to 1.7.0.

Changelog

Sourced from regex's changelog.

1.7.0 (2022-11-05)

This release principally includes an upgrade to Unicode 15.

New features:

• [FEATURE #832](rust-lang/regex#916): Upgrade to Unicode 15.

Commits

• f871a8e 1.7.0
• ca7b99c changelog: 1.7.0
• ea3b132 regex-syntax-0.6.28
• 9a18927 syntax: update to Unicode 15
• 0d0023e rure-0.2.2
• 3bac5c8 capi: add 'rlib' crate type
• 159a63c doc: add a note about the empty regex
• fc6f5cc readme: re-word usage to remove version number
• 67824c7 ci: switch to dtolnay/rust-toolchain
• 5466076 capi: fix 'unused return value' warnings
• See full diff in compare view

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