Merge pull request #508 from netbox-community/renovate/postgres-13.x

Update postgres Docker tag to v13

docker-compose.test.yml

@@ -20,7 +20,7 @@ services:
     ports:
     - 8080
   postgres:
-    image: postgres:12-alpine
+    image: postgres:13-alpine
     env_file: env/postgres.env
   redis:
     image: redis:6-alpine

docker-compose.yml

@@ -29,7 +29,7 @@ services:
 
   # postgres
   postgres:
-    image: postgres:12-alpine
+    image: postgres:13-alpine
     env_file: env/postgres.env
     volumes:
     - netbox-postgres-data:/var/lib/postgresql/data