Main changes:

* Update dependencies to latest version
* Add path in session cookie when namespace is provided in path
* Update module gitlab.com/gitlab-org/labkit to v1.21.0
* Update module github.com/gorilla/sessions to v1.2.2
* Update interface signature
* Update module golang.org/x/sys to v0.14.0
* Set generic type for cache upgrade
* Update module github.com/karlseguin/ccache/v2 to v3

Reference: https://gitlab.com/gitlab-org/gitlab-pages/-/compare/6cb3173f9a1468c93d5c3fa9327e9b560de1329b...38a79230add5dc453d8fafa48f7f3e218a70f0be

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This is part of the [Gitlab Pages update process](https://gitlab.com/gitlab-org/gitlab-pages/-/blob/master/PROCESS.md)

Changelog: changed