Add helper install option

action.yml

@@ -4,6 +4,9 @@ author: Janis Hutz
 inputs:
   workdir:
     description: Directory to compile in
+  include_helpers:
+    description: Whether or not to include helpers
+    default: "false"
   args:
     description: Extra arguments to be passed to latexmk
     default: ""
@@ -15,6 +18,7 @@ runs:
   image: Dockerfile
   args:
     - ${{ inputs.file }}
+    - ${{ inputs.include_helpers }}
     - ${{ inputs.args }}
     - ${{ inputs.extra_system_packages }}
 branding: