Update composer.json

This will let to use it in new elasticsearch-contentrepositoryadaptor

Author: mireo91

composer.json

@@ -5,7 +5,7 @@
   "license": "MIT",
   "require": {
     "flowpack/jobqueue-common": "^3.0 || dev-master",
-    "flowpack/elasticsearch-contentrepositoryadaptor": "^5.0"
+    "flowpack/elasticsearch-contentrepositoryadaptor": "^4.0 || ^5.0"
   },
   "autoload": {
     "psr-4": {