[Misc] Update the postgresql version to 12.1 (#27)

10/postgres-tomcat/docker-compose.yml

@@ -46,7 +46,7 @@ services:
       - bridge
   # The container that runs the database (postgres)
   db:
-    image: "postgres:9.5-alpine"
+    image: "postgres:12.1-alpine"
     container_name: xwiki-postgres-db
     volumes:
       - postgres-data:/var/lib/postgresql/data

11/postgres-tomcat/docker-compose.yml

@@ -46,7 +46,7 @@ services:
       - bridge
   # The container that runs the database (postgres)
   db:
-    image: "postgres:9.5-alpine"
+    image: "postgres:12.1-alpine"
     container_name: xwiki-postgres-db
     volumes:
       - postgres-data:/var/lib/postgresql/data

docker-compose-postgres.yml

@@ -44,7 +44,7 @@ services:
       - bridge
   # The container that runs PostgreSQL
   db:
-    image: "postgres:9.5-alpine"
+    image: "postgres:12.1-alpine"
     container_name: xwiki-postgres-db
     volumes:
       - postgres-data:/var/lib/postgresql/data

template/docker-compose.yml

@@ -67,7 +67,7 @@ services:
       - MYSQL_PASSWORD=\${DB_PASSWORD}
       - MYSQL_DATABASE=\${DB_DATABASE}'''
 
-    else if (db == 'postgres') print '''image: "postgres:9.5-alpine"
+    else if (db == 'postgres') print '''image: "postgres:12.1-alpine"
     container_name: xwiki-postgres-db
     volumes:
       - postgres-data:/var/lib/postgresql/data