Making sure labels default is read as empty string

Without wrapping quote in double quote, the command is built with only --labels instead of --labels ''.

Author: James Timms

defaults/main.yml

@@ -36,7 +36,7 @@ runner_org: no
 runner_name: "{{ ansible_hostname }}"
 
 # Labels to apply to the runner
-runner_labels: ''
+runner_labels: "''"
 
 # Custom service name when usign Github Enterprise server
 # service_name: actions.runner._services.{{ runner_name }}.service