Merge pull request 'Rename roles to comply with linter' (#495) from alex/netz39-infra-ansible:lint into master

Reviewed-on: Netz39_Admin/netz39-infra-ansible#495
Reviewed-by: dkdent <dkdent@netz39.de>

host-plumbum.yml

@@ -3,7 +3,7 @@
   become: true
 
   roles:
-    - role: nfs-host
+    - role: nfs_host
       vars:
         nfs_host_exports:
           - directory: "/srv/nfs/backup"

host-tau.yml

@@ -191,7 +191,7 @@
 
     - name: Setup forwarding for Discord invite
       include_role:
-        name: setup-http-site-forward
+        name: setup_http_site_forward
       vars:
         site_name: "{{ discord_invite_domain }}"
         # forward_to: "https://discord.com/invite/8FcDvAf"

roles/nfs_host/defaults/main.yml

@@ -1,4 +1,4 @@
-# Defaults for nfs-host
+# Defaults for nfs_host
 ---
 nfs_host_exports: []
   # - directory: "/srv/nfs"