update slock submodule within birdwm - desuck - Unnamed repository; edit this file 'description' to name the repository.

commit b4d0810ce3d20a6c041df115faad2ea18ce8f16f
parent 2817c1d550b6ef852db194c2d7cb6f18dce79f00
Author: grouse <bdmfegys@duck.com>
Date:   Thu,  7 Mar 2024 16:47:23 -0500

update slock submodule within birdwm

	desuck Unnamed repository; edit this file 'description' to name the repository.
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