Fix test using deprecated timeout_minutes field

[Copilot]

Test fixture in TestMaxTurnsCompilation was using the deprecated timeout_minutes field (underscore), causing compilation failures with "Unknown property" errors.

Changes

• Updated test fixture to use timeout-minutes (hyphen) to match current schema requirements

 engine:
   id: claude
   max-turns: 10
-timeout_minutes: 15
+timeout-minutes: 15
 strict: false

The timeout_minutes field was removed from the schema in #14736, and test fixtures must use the hyphenated version.

Original prompt

Reference: https://github.com/github/gh-aw/actions/runs/21893260769/job/63203935644#step:10:1

Fix tests

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[Copilot]

Pull request overview

This PR fixes a test compilation failure caused by using the deprecated timeout_minutes field (underscore) instead of the current timeout-minutes field (hyphen) in a test fixture.

Changes:

• Updated test fixture in TestMaxTurnsCompilation to use timeout-minutes field to match current schema requirements

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