revert docker compose php default version in docker compose files

Author: transistive

docker-compose-neo4j-4.yml

@@ -32,7 +32,7 @@ services:
       context: .
       dockerfile: Dockerfile
       args:
-        PHP_VERSION: "${PHP_VERSION}"
+        PHP_VERSION: "${PHP_VERSION-8.1}"
     networks:
       - neo4j
     volumes:
@@ -47,7 +47,7 @@ services:
       context: .
       dockerfile: Dockerfile
       args:
-        PHP_VERSION: "${PHP_VERSION}"
+        PHP_VERSION: "${PHP_VERSION-8.1}"
         WITH_XDEBUG: true
     working_dir: /opt/project
     volumes:

docker-compose.yml

@@ -26,7 +26,7 @@ x-definitions:
       context: .
       dockerfile: Dockerfile
       args:
-        PHP_VERSION: "${PHP_VERSION}"
+        PHP_VERSION: "${PHP_VERSION-8.1}"
     volumes:
       - .:/opt/project
   x-common-cluster: