Bump activemodel from 8.1.2.1 to 8.1.3.1 in the bundler-production group

[dependabot]

Bumps the bundler-production group with 1 update: activemodel.

Updates activemodel from 8.1.2.1 to 8.1.3.1

Release notes

Sourced from activemodel'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 activemodel's changelog.

Rails 8.1.3.1 (July 29, 2026)

• No changes.

Rails 8.1.3 (March 24, 2026)

• Fix Ruby 4.0 delegator warning when calling inspect on attributes.

  Hammad Khan

• Fix NoMethodError when deserialising Type::Integer objects marshalled under Rails 8.0.

  The performance optimisation that replaced @range with @max/@min broke Marshal compatibility. Objects serialised under 8.0 (with @range) and deserialised under 8.1 (expecting @max/@min) would crash with undefined method '<=' for nil because Marshal.load restores instance variables without calling initialize.

  Edward Woodcock

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
• 5a3d7d9 Merge pull request #56943 from yahonda/ruby-16321
• 034ca73 Merge pull request #56867 from hammadxcm/fix-ruby4-delegator-inspect-warning
• 6c23f3b Merge pull request #56768 from RemoteCTO/fix/integer-type-marshal-compat
• See full diff in compare view

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