Bump regex from 1.0.3 to 1.5.6 in /chromium-library/chromium_subp

[dependabot]

Bumps regex from 1.0.3 to 1.5.6.

Changelog

Sourced from regex's changelog.

1.5.6 (2022-05-20)

This release includes a few bug fixes, including a bug that produced incorrect matches when a non-greedy ? operator was used.

• [BUG #680](rust-lang/regex#680): Fixes a bug where [[:alnum:][:^ascii:]] dropped [:alnum:] from the class.
• [BUG #859](rust-lang/regex#859): Fixes a bug where Hir::is_match_empty returned false for \b.
• [BUG #862](rust-lang/regex#862): Fixes a bug where 'ab??' matches 'ab' instead of 'a' in 'ab'.

1.5.5 (2022-03-08)

This releases fixes a security bug in the regex compiler. This bug permits a vector for a denial-of-service attack in cases where the regex being compiled is untrusted. There are no known problems where the regex is itself trusted, including in cases of untrusted haystacks.

• SECURITY #GHSA-m5pq-gvj9-9vr8: Fixes a bug in the regex compiler where empty sub-expressions subverted the existing mitigations in place to enforce a size limit on compiled regexes. The Rust Security Response WG published an advisory about this: https://groups.google.com/g/rustlang-security-announcements/c/NcNNL1Jq7Yw

1.5.4 (2021-05-06)

This release fixes another compilation failure when building regex. This time, the fix is for when the pattern feature is enabled, which only works on nightly Rust. CI has been updated to test this case.

• [BUG #772](rust-lang/regex#772): Fix build when pattern feature is enabled.

1.5.3 (2021-05-01)

This releases fixes a bug when building regex with only the unicode-perl feature. It turns out that while CI was building this configuration, it wasn't actually failing the overall build on a failed compilation.

• [BUG #769](rust-lang/regex#769): Fix build in regex-syntax when only the unicode-perl feature is enabled.

1.5.2 (2021-05-01)

This release fixes a performance bug when Unicode word boundaries are used.

... (truncated)

Commits

• 9aef5b1 1.5.6
• 2931b07 syntax: bump minimum regex-syntax version to 0.6.26
• b41bde0 regex-syntax-0.6.26
• d98da65 changelog: 1.5.6
• 1c19619 syntax: fix literal extraction for 'ab??'
• 88a2a62 syntax: fix 'is_match_empty' predicate
• 72f09f1 syntax: fix ascii class union bug
• b537286 doc: fix some typos
• 258bdf7 changelog: 1.5.5
• d130381 1.5.5
• Additional commits viewable in compare view

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