fix: Add apoc plugin for Neo4j v4 containers

Author: exaby73

docker-compose-neo4j-4.yml

@@ -3,6 +3,7 @@ x-shared:
   NEO4J_AUTH: neo4j/testtest
   NEO4J_ACCEPT_LICENSE_AGREEMENT: "yes"
   NEO4J_dbms_security_allow__csv__import__from__file__urls: "true"
+  NEO4JLABS_PLUGINS: '["apoc"]'
 
 x-shared-cluster:
   &common-cluster