Update actions/checkout digest to 2541b12

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	digest	93ea575 -> 2541b12

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[TWiStErRob]

This is strange... this PR downgrades the version upgraded in #5372

Tag	Hash
https://github.com/actions/checkout/releases/tag/v3.0.2	actions/checkout@2541b12
https://github.com/actions/checkout/releases/tag/v3.1.0	actions/checkout@93ea575
https://github.com/actions/checkout/tree/v3 (2022-10-18)	actions/checkout@93ea575

So the timeline:

• pinned dependencies introduced in Pin dependencies #5222 for v3.0.2
• v3.0.2 -> v3.1.0 upgrade in Update actions/checkout digest to 93ea575 #5372
• v3.1.0 -> v3.0.2 downgrade in Update actions/checkout digest to 2541b12 #5377
• at the moment there's no open renovate PR for actions/checkout.

Asked for help in renovatebot/renovate#18397