chore: Set docker-compose images to latest version

Since our development is not based on the server versioning, but the
Python client one, let's use the latest versions of the container
images configured in the docker-compose file.

Signed-off-by: Paulo Vital <[email protected]>

Author: pvital

docker-compose.yml

@@ -1,15 +1,15 @@
 version: '3.8'
 services:
   redis:
-    image: redis:5.0.14
+    image: redis
     volumes:
       - ./tests/conf/redis.conf:/usr/local/etc/redis/redis.conf:Z
     command: redis-server /usr/local/etc/redis/redis.conf
     ports:
       - "0.0.0.0:6379:6379"
 
   cassandra:
-    image: cassandra:3.11.5
+    image: cassandra
     ports:
       - 9042:9042
 
@@ -35,12 +35,12 @@ services:
       - ./tests/config/database/mysql/conf.d/mysql.cnf:/etc/mysql/conf.d/mysql.cnf:Z
 
   mongodb:
-    image: 'mongo:4.2.3'
+    image: mongo
     ports:
       - '27017:27017'
 
   postgres:
-    image: postgres:10.5
+    image: postgres
     ports:
       - 5432:5432
     environment:
@@ -49,7 +49,7 @@ services:
       POSTGRES_DB: circle_test
 
   rabbitmq:
-    image: rabbitmq:3.9.13-alpine
+    image: rabbitmq
     environment:
       - RABBITMQ_NODENAME=rabbit@localhost
     ports: