trying to fix postgres on CI

.travis.yml

@@ -44,7 +44,7 @@ before_script:
 - greenkeeper-lockfile-update
 - npm link typescript
 - tsc
-- sleep 240
+- sleep 180
 - docker logs typeorm-mg-postgres
 
 after_script:

docker-compose.yml

@@ -21,7 +21,7 @@ services:
 
   # postgres
   postgres:
-    image: "postgres:10.0"
+    image: "postgres:10.5"
     container_name: "typeorm-mg-postgres"
     ports:
       - "5432:5432"