chore(deps): bump regex from 1.5.4 to 1.5.5 in /pallet-chainlink-feed

[dependabot[bot]]

Bumps regex from 1.5.4 to 1.5.5.

Changelog

Sourced from regex's changelog.

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

Commits

• d130381 1.5.5
• ae70b41 security: fix denial-of-service bug in compiler
• b92ffd5 cargo: use SPDX license format
• f6e52da syntax: fix 'unused' warnings
• 5197f21 fuzz: do not use inherits in Cargo.toml
• 3662851 doc: fix typo
• 63ee669 syntax/doc: fix 'their' typo
• d6bc7a4 readme: remove broken badge
• bd74660 fuzz: try to fix build issue
• bd0a142 readme: fix badges
• Additional commits viewable in compare view

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