style: use quotation marks for the name of an action

defaults/main.yml

@@ -2,6 +2,6 @@
 
 # Users added to required Unix groups to interact with qemu/kvm.
 kvm_users: []
-# - name: markus
+# - name: "markus"
 
 kvm_virtual_machine_manager: false

meta/main.yml

@@ -7,14 +7,14 @@ galaxy_info:
   license: MIT
   min_ansible_version: "2.9"
   platforms:
-  - name: ArchLinux
+  - name: "ArchLinux"
     versions:
     - all
-  - name: Ubuntu
+  - name: "Ubuntu"
     versions:
     - jammy
     - bionic
-  - name: EL
+  - name: "EL"
     versions:
     - all