Update activerecord requirement from >= 6.1, < 8.0 to >= 6.1, < 9.0

[dependabot[bot]]

Updates the requirements on activerecord to permit the latest version.

Release notes

Sourced from activerecord's releases.

7.1.5.2

Active Support

• No changes.

Active Model

• No changes.

Active Record

• Call inspect on ids in RecordNotFound error

  [CVE-2025-55193]

  Gannon McGibbon, John Hawthorn

Action View

• No changes.

Action Pack

• No changes.

Active Job

• No changes.

Action Mailer

• No changes.

Action Cable

• No changes.

Active Storage

Remove dangerous transformations
[CVE-2025-24293]

... (truncated)

Commits

• ddb56de Preparing for 7.1.5.2 release
• b279e04 Update CHANGELOGs
• 3beef20 Call inspect on ids in RecordNotFound error
• 14c115b Preparing for 7.1.5.1 release
• 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
• Additional commits viewable in compare view

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