add runtime-basedir input

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

action.yml

@@ -31,6 +31,9 @@ inputs:
     description: 'Enable Docker rootless mode'
     default: 'false'
     required: false
+  runtime-basedir:
+    description: 'Docker runtime base directory'
+    required: false
 
 outputs:
   sock: