chore(deps): update actions/checkout action to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v5 -> v6

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Release Notes

actions/checkout (actions/checkout)

v6

Compare Source

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[renovate]

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Slowest examples

Top 10 slowest examples (1.78 seconds, 15.11% of total time)

Example	Description	Time in seconds
spec/resources/service_spec.rb:153	chroot recipe on centos 8 run mknod_urandom actions and notifications	0.30126
spec/resources/acl_spec.rb:18	adding access control lists renders the acl into the options file	0.26951
spec/default_spec.rb:41	bind::default on unspecified platform (EL 5/6 as reference) renders file /etc/named/named.rfc1912.zones	0.19827
spec/chroot_spec.rb:188	bind_test::chroot on Ubuntu 18.04 creates /var/bind9/chroot/var/cache/bind/dynamic with mode 750 and owner bind	0.19817
spec/resources/secondary_zone_spec.rb:17	adding secondary zones will render secondary with no options	0.18272
spec/resources/secondary_zone_spec.rb:12	adding secondary zones uses the custom resource	0.17648
spec/chroot_spec.rb:54	bind_test::chroot on CentOS 7 creates subdirectory /var/named/primary	0.17293
spec/chroot_spec.rb:109	bind_test::chroot on CentOS 8 will render secondary with no options	0.10391
spec/resources/view_spec.rb:35	adding a single view will add a zone with no view name to the default view	0.09413
spec/chroot_spec.rb:15	bind_test::chroot on CentOS 7 is expected to install package "["bind-chroot", "bind-utils", "bind-libs"]"	0.09233