Update GitHub Actions

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	patch	v6.0.2 → v6.0.3
zizmorcore/zizmor-action	action	patch	v0.5.3 → v0.5.7

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Release Notes

actions/checkout (actions/checkout)

v6.0.3

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• Fix checkout init for SHA-256 repositories by @​yaananth in #​2439
• fix: expand merge commit SHA regex and add SHA-256 test cases by @​yaananth in #​2414

zizmorcore/zizmor-action (zizmorcore/zizmor-action)

v0.5.7

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1.26.1 is now available via the action
1.26.1 is now the default version of zizmor used by the action

v0.5.6

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• 1.25.2 is now available via the action
• 1.25.2 is now the default version of zizmor used by the action

v0.5.5

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This is a no-op release.

v0.5.4

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• 1.25.0 is now available via the action
• 1.25.0 is now the default version of zizmor used by the action

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Configuration

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