Update dependency config to v5

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
config (changelog)	4.2.1 -> 5.6.1

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Release Notes

rubyconfig/config (config)

v5.6.1

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• fix(security): replace IO.read with File.read #​378

v5.6.0

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• Added extra_sources in initializer (#​366)

v5.5.2

• Fix warning: ostruct was loaded from the standard library with Ruby 3.3.5 and 3.4+ (#​363)

v5.5.1

Documentation

• Fix funding_url to funding_uri in gemspec (#​361)

v5.5.0

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New features

• Allow arrays to be passed through env variables (#​354)

Documentation

• Use funding_url rather than post_install_message (#​360)
• Fix typos in the tests and documentation (#​359)

v5.4.0

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New features

• Add configuration option environment to override the use of Rails.env (#​356)

v5.3.0

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• Remove dry-validation from dependencies (#​333)

v5.2.0

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New features

• Allow to use custom filename && directory name to store configs (#​341)

Bug fixes

• Prevent name collision with private methods from ancestors (#​351)

v5.1.0

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• Fix conflicts with Rails 7 active_support methods (#​347)

v5.0.0

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BREAKING CHANGES

• No longer load deep_merge's monkey patch for Hash#deep_merge and Hash#deep_merge! (#​342). If you rely on those methods and are not using Rails / Active Support, you can load the monkey patch via require 'deep_merge/deep_merge_hash'. This change fixes Rails 7.x support.

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Configuration

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