feat(Nextcloud): Split redis & postgres configuration

nextcloud/docker-compose.redis.yml

@@ -0,0 +1,15 @@
+---
+
+version: "3.8"
+
+services:
+  nextcloud-fpm:
+    depends_on:
+      - redis
+    environment:
+      &redis-configuration
+      REDIS_HOST: ${REDIS_CONTAINER_NAME:-redis} # Default name is same as ../redis/docker-compose.yml:4
+
+  nextcloud-cron:
+    environment:
+      <<: *redis-configuration