Deprecate the arguments parameter

Fixes #996

action.yml

@@ -59,10 +59,6 @@ inputs:
     required: false
     default: false
 
-  arguments:
-    description: Gradle command line arguments (supports multi-line input)
-    required: false
-
   generate-job-summary:
     description: When 'false', no Job Summary will be generated for the Job.
     required: false
@@ -77,6 +73,12 @@ inputs:
     description: Specifies the number of days to retain any artifacts generated by the action. If not set, the default retention settings for the repository will apply.
     required: false
 
+  # DEPRECATED ACTION INPUTS
+  arguments:
+    description: Gradle command line arguments (supports multi-line input)
+    required: false
+    deprecation-message: The `gradle-build-action` will configure your runner so that any subsequent Gradle execution will benefit. Using the action to execute Gradle directly is deprecated in favor of executing Gradle in a subsequent Step. See https://github.com/gradle/gradle-build-action?tab=readme-ov-file#use-the-action-to-setup-gradle. 
+
   # EXPERIMENTAL & INTERNAL ACTION INPUTS
   # The following action properties allow fine-grained tweaking of the action caching behaviour.
   # These properties are experimental and not (yet) designed for production use, and may change without notice in a subsequent release of `gradle-build-action`.