Update activerecord requirement from >= 5.2, < 8 to >= 5.2, < 9

[dependabot]

Updates the requirements on activerecord to permit the latest version.

Release notes

Sourced from activerecord's releases.

7.1.5

Active Support

• No changes.

Active Model

• Fix regression in alias_attribute to work with user defined methods.

  alias_attribute would wrongly assume the attribute accessor was generated by Active Model.

  class Person
    include ActiveModel::AttributeMethods
  define_attribute_methods :name
  attr_accessor :name
  alias_attribute :full_name, :name
  end
  person.full_name # => NoMethodError: undefined method `attribute' for an instance of Person

  Jean Boussier

Active Record

• Fix marshalling of unsaved associated records in 7.1 format.

  The 7.1 format would only marshal associated records if the association was loaded. But associations that would only contain unsaved records would be skipped.

  Jean Boussier

• Fix an issue where .left_outer_joins used with multiple associations that have the same child association but different parents does not join all parents.

  Previously, using .left_outer_joins with the same child association would only join one of the parents.

  Now it will correctly join both parents.

  Fixes #41498.

  Garrett Blehm

• Ensure ActiveRecord::Encryption.config is always ready before access.

... (truncated)

Commits

• 8984f4c Revert "Merge pull request #53484 from zzak/query_cache-config-disable"
• 30f7974 Revert "Merge pull request #53494 from zzak/re-53492"
• 625ec92 Preparing for 7.1.5 release
• d78c6e4 Merge pull request #53494 from zzak/re-53492
• e60b786 Merge pull request #53484 from zzak/query_cache-config-disable
• 3ddbd08 Merge remote-tracking branch 'origin/7-1-sec' into 7-1-stable
• e52d670 Preparing for 7.1.4.2 release
• 7021f21 [ci skip] Fix CHANGELOG lint errors
• f6b283c Merge pull request #53360 from Shopify/ar-marshalling-7.1-unsaved-records
• d3ceb6c Merge remote-tracking branch 'origin/7-1-sec' into 7-1-stable
• Additional commits viewable in compare view

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