Update dependency check-jsonschema to v0.38.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
check-jsonschema	==0.37.4 → ==0.38.0

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Release Notes

python-jsonschema/check-jsonschema (check-jsonschema)

v0.38.0

Compare Source

• Update vendored schemas: bitbucket-pipelines, buildkite, circle-ci, codecov,
  compose-spec, dependabot, gitlab-ci, mergify, readthedocs, renovate, taskfile,
  woodpecker-ci (2026-08-08)
• Add a dedicated check-github-workflows-require-timeout pre-commit hook for
  requiring timeout-minutes on all GitHub Workflow jobs. (:issue:639)

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