Update activesupport requirement from ~> 7.1.6 to ~> 8.1.3

[dependabot]

Updates the requirements on activesupport to permit the latest version.

Release notes

Sourced from activesupport's releases.

8.1.3.1

Active Support

• No changes.

Active Model

• No changes.

Active Record

• No changes.

Action View

• No changes.

Action Pack

• No changes.

Active Job

• No changes.

Action Mailer

• No changes.

Action Cable

• No changes.

Active Storage

• Disable libvips's unfuzzed image loaders and savers.

  libvips flags some of its loaders and savers as "unfuzzed" or "untrusted", meaning they are only safe for trusted content. Active Storage will call Vips.block_untrusted(true) to disable them while booting. An application that needs a specific loader or saver may re-enable it in an initializer.

... (truncated)

Changelog

Sourced from activesupport's changelog.

Rails 8.1.3.1 (July 29, 2026)

• No changes.

Rails 8.1.3 (March 24, 2026)

• Fix JSONGemCoderEncoder to correctly serialize custom object hash keys.

  When hash keys are custom objects whose as_json returns a Hash, the encoder now calls to_s on the original key object instead of on the as_json result.

  Before: hash = {CustomKey.new(123) => "value"} hash.to_json # => {"{:id=>123}":"value"}

  After: hash.to_json # => {"custom_123":"value"}

  Dan Sharp

• Fix inflections to better handle overlapping acronyms.

  ActiveSupport::Inflector.inflections(:en) do |inflect|
    inflect.acronym "USD"
    inflect.acronym "USDC"
  end
  "USDC".underscore # => "usdc"

  Said Kaldybaev

• Silence Dalli 4.0+ warning when using ActiveSupport::Cache::MemCacheStore.

  zzak

Rails 8.1.2.1 (March 23, 2026)

• Reject scientific notation in NumberConverter

  [CVE-2026-33176]

  Jean Boussier

• Fix SafeBuffer#% to preserve unsafe status

... (truncated)

Commits

• 3989ebf Preparing for 8.1.3.1 release
• fa8f081 Preparing for 8.1.3 release
• 63cef3d Merge branch '8-1-sec' into 8-1-stable
• 1db4b89 Preparing for 8.1.2.1 release
• 1c7d1cf Update changelog
• ec1a0e2 Improve performance of NumberToDelimitedConverter
• 50d732a Fix SafeBuffer#% to preserve unsafe status
• 19dbab5 NumberConverter: reject scientific notation
• c315744 Merge pull request #56889 from alpaca-tc/support-spring-on-test-environment
• 2ac86a8 Revert benchmark.rb to a silent shim (#56832)
• Additional commits viewable in compare view

[inukai-masanori]

@dependabot rebase