Parameterise execution of runner

Author: kpturner

action.yml

@@ -69,7 +69,11 @@ inputs:
     description: >-
       Specifies bash commands to run before the runner starts. It's useful for installing dependencies with apt-get, yum, dnf, etc.
     required: false
-
+  run-runner-as-service:
+    type: boolean
+    description: >-
+      Start the runner as a service rather than using ./run.sh as root.
+    required: false
 outputs:
   label:
     description: >-