build(deps): bump graphql from 2.6.5 to 2.6.6

[dependabot]

Bumps graphql from 2.6.5 to 2.6.6.

Changelog

Sourced from graphql's changelog.

2.6.6 (21 Jul 2026)

• Security: This version includes a remediation for a security issue in Execution::Next (GHSA-j7xr-4g94-r9h3).

New features

• Support pattern matching non-null and list type definitions #5660

Bug fixes

• SDL: properly apply directive argument default values #5659
• Dataloader: fix Ruby version compatibility check #5662
• Validation: apply query token limit in Schema.validate #5668
• Dataloader: Use a queue for more efficient Source resolution #5666
• Remove needless compat with Ruby 2.2 #5670
• Schema: fix union memberships lookup #5663
• Dataloader: unify lazy resolution code #5669
• AsyncDataloader: improve task scheduling to fix deadlocks #5672

Commits

• 9548947 2.6.6
• 011203d Merge pull request #5673 from ydah/fix-operation-directive-finalizer
• dd6f3f3 Merge pull request #5672 from rmosolgo/async-dataloader-error-handling
• ac63800 Merge commit from fork
• 741e379 Correctly handle UnauthorizedErrors raised by Resolvers in Execution::Next
• eb230f8 Move spawn_tasks back to a method to preserve reference to pending_work
• 8e8bf89 Use sequential calls instead of yield with next_lazies
• 2fe9a62 Remove needless method
• 726ff88 Clean up some internal APIs
• 5bfae85 Skip lint
• Additional commits viewable in compare view

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[github-actions]

@dependabot merge

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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[codacy-production]

Pull Request Overview

This pull request updates the graphql gem from version 2.6.5 to 2.6.6. This is a security-focused update addressing GHSA-j7xr-4g94-r9h3 (Execution::Next vulnerability) and including a fix for query token limits in Schema.validate.

Codacy results indicate the project is up to standards. There are no logic or security flaws identified in the Gemfile.lock update that should prevent merging. However, manual or automated verification of the specific execution scenarios affected by the patch is recommended as part of the test plan.

Test suggestions

• Verify that GraphQL queries still execute correctly following the security patch in Execution::Next.
• Confirm that Schema.validate correctly applies query token limits as per the new fix.

Prompt proposal for missing tests

Consider implementing these tests if applicable:
1. Verify that GraphQL queries still execute correctly following the security patch in Execution::Next.
2. Confirm that Schema.validate correctly applies query token limits as per the new fix.

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