Add flowpack/prunner as a dependency

Author: hlubek

composer.json

@@ -5,7 +5,8 @@
   "require": {
     "php": "^7.1 || ^8.0",
     "neos/neos": "~7.1",
-    "albertofem/rsync-lib": "~1.0"
+    "albertofem/rsync-lib": "~1.0",
+    "flowpack/prunner": "^0.2",
   },
   "autoload": {
     "psr-4": {