Edit worker version gpu usage in admin

Closes #1755 (closed)

arkindex/process/admin.py

@@ -120,7 +120,7 @@ class WorkerTypeAdmin(admin.ModelAdmin):
 class WorkerVersionAdmin(admin.ModelAdmin):
     list_display = ("id", "worker", "revision", "version")
     list_filter = ("worker", )
-    fields = ("id", "worker", "revision", "version", "configuration", "model_usage")
+    fields = ("id", "worker", "revision", "version", "configuration", "model_usage", "gpu_usage")
     readonly_fields = ("id", )
     raw_id_fields = ("docker_image", "revision")