Update github-actions

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github/codeql-action	action	patch	v4.37.6 → v4.37.7
step-security/harden-runner	action	minor	v2.20.1 → v2.21.0

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Release Notes

github/codeql-action (github/codeql-action)

v4.37.7

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• Update default CodeQL bundle version to 2.26.3. #​4085

step-security/harden-runner (step-security/harden-runner)

v2.21.0

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What's Changed

• Support for denied endpoints in block mode. This is included in the enterprise tier. Customers can deny outbound calls, for example, to public package registries.
• Improved Support for AWS CodeBuild GitHub Actions Runners.
• Bug fixes.

Full Changelog: step-security/harden-runner@v2.20.1...v2.21.0

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