style: use quotation marks for the name of an action

defaults/main.yml

@@ -1,7 +1,7 @@
 ---
 
 dhcpd_tsigkeys: []
-# - name: dyndns
+# - name: "dyndns"
 #   algorithm: hmac-sha512
 #   secret: secret-of-tsig-key
 

meta/main.yml

@@ -7,13 +7,13 @@ galaxy_info:
   license: MIT
   min_ansible_version: "2.9"
   platforms:
-  - name: ArchLinux
+  - name: "ArchLinux"
     versions:
     - all
-  - name: Ubuntu
+  - name: "Ubuntu"
     versions:
     - all
-  - name: EL
+  - name: "EL"
     versions:
     - all