scripts/installer.sh: add SUSE Enterprise Server.

Fixes https://github.com/tailscale/tailscale/issues/6840

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
This commit is contained in:
Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f