Merge branch 'add-debian-bullseye' into 'master'

Add Debian 11 to the list of supported OS

See merge request gitlab-org/gitlab!75180

doc/administration/package_information/supported_os.md

@@ -19,8 +19,9 @@ The following lists the currently supported OSs and their possible EOL dates.
 | ---------------- | ------------------------------ | --------------- | ------------- | ------------------------------------------------------------ |
 | CentOS 7         | GitLab CE / GitLab EE 7.10.0   | x86_64          | June 2024     | <https://wiki.centos.org/About/Product>                      |
 | CentOS 8         | GitLab CE / GitLab EE 12.8.1   | x86_64, aarch64 | Dec 2021      | <https://wiki.centos.org/About/Product>                      |
-| Debian 9         | GitLab CE / GitLab EE 9.3.0    | amd64           | 2022          | <https://wiki.debian.org/DebianReleases#Production_Releases> |
-| Debian 10        | GitLab CE / GitLab EE 12.2.0   | amd64, arm64    | TBD           | <https://wiki.debian.org/DebianReleases#Production_Releases> |
+| Debian 9         | GitLab CE / GitLab EE 9.3.0    | amd64           | 2022          | <https://wiki.debian.org/LTS>                                |
+| Debian 10        | GitLab CE / GitLab EE 12.2.0   | amd64, arm64    | 2024          | <https://wiki.debian.org/LTS>                                |
+| Debian 11        | GitLab CE / GitLab EE 14.6.0   | amd64, arm64    | 2026          | <https://wiki.debian.org/LTS>                                |
 | OpenSUSE 15.2    | GitLab CE / GitLab EE 13.11.0  | x86_64, aarch64 | Dec 2021      | <https://en.opensuse.org/Lifetime>                           |
 | OpenSUSE 15.3    | GitLab CE / GitLab EE 14.5.0   | x86_64, aarch64 | Nov 2022      | <https://en.opensuse.org/Lifetime>                           |
 | SLES 12          | GitLab EE 9.0.0                | x86_64          | Oct 2027      | <https://www.suse.com/lifecycle/>                            |