Bump addressable from 2.8.1 to 2.8.4

[dependabot[bot]]

Bumps addressable from 2.8.1 to 2.8.4.

Changelog

Sourced from addressable's changelog.

Addressable 2.8.4

• Restore Addressable::IDNA.unicode_normalize_kc as a deprecated method (#504)

#504: sporkmonger/addressable#504

Addressable 2.8.3

• Fix template expand level 2 hash support for non-string objects (#499, #498)

#499: sporkmonger/addressable#499 #498: sporkmonger/addressable#498

Addressable 2.8.2

• Improve cache hits and JIT friendliness (#486)
• Improve code style and test coverage (#482)
• Ensure reset of deferred validation (#481)
• Resolve normalization differences between IDNA::Native and IDNA::Pure (#408, #492)
• Remove redundant colon in Addressable::URI::CharacterClasses::AUTHORITY regex (#438) (accidentally reverted by #449 merge but added back in #492)

#492: sporkmonger/addressable#492

Commits

• e91b64e Update version, gemspec, and CHANGELOG for 2.8.4 (#505)
• b460cb7 restore unicode_normalize_kc as a deprecated method (#504)
• 68c60e3 Update version, gemspec, and CHANGELOG for 2.8.3 (#503)
• bfafba8 Simplify template specs by removing the 1.8 unordered hash fix (#500)
• c00d58b Fix template expand level 2 hash support for non-string objects (#499)
• bcaf766 Correct files list in gemspec (#497)
• 5622589 Update version, gemspec, and CHANGELOG for 2.8.2 (#495)
• 5c22f25 Merge pull request #492 from jarthod/fix-null-normalization-408
• 1998e06 Use ruby unicode normalize to avoid libidn C problems and heavy legacy ruby code
• 1fdd676 CI: remove truffleruby-21.3 from matrix (#490)
• Additional commits viewable in compare view

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