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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Slowest examples

Top 10 slowest examples (1.61 seconds, 47.65% of total time)

Example	Description	Time in seconds
spec/unit/recipes/mod_cgi_spec.rb:27	iis::mod_cgi when all attributes are default, on an unspecified platform converges successfully	0.59097
spec/unit/recipes/default_spec.rb:29	iis::default when iis components provided, on an unspecified platform converges successfully	0.27666
spec/unit/recipes/remove_default_site_spec.rb:35	iis::remove_default_site When all attributes are default, on an unspecified platform stops default app pool	0.18979
spec/unit/recipes/default_spec.rb:73	iis::default When source provided, on an unspecified platform installs features with source	0.1248
spec/unit/resources/install_spec.rb:99	iis_install When single additional component specified, on an unspecified platform installs iis and additional component	0.07445
spec/unit/recipes/default_spec.rb:69	iis::default When source provided, on an unspecified platform converges successfully	0.07351
spec/unit/recipes/mod_isapi_spec.rb:27	iis::mod_isapi when all attributes are default, on an unspecified platform converges successfully	0.07119
spec/unit/recipes/remove_default_site_spec.rb:39	iis::remove_default_site When all attributes are default, on an unspecified platform deletes default app pool	0.07093
spec/unit/recipes/mod_tracing_spec.rb:27	iis::mod_tracing when all attributes are default, on an unspecified platform converges successfully	0.07056
spec/unit/resources/install_spec.rb:29	iis_install When no additional iis components provided, on an unspecified platform installs windows feature IIS	0.07046