Invalid Locale_Name on latest image 7.2.5

### Environment

* docker-redis-cluster version: 7.2.5
* docker compose : v2.26.1-desktop.1

Service declaration in docker compose file
```
RedisCluster:
restart: always
image: grokzen/redis-cluster:7.2.5
ports:
- "30001:30001"
- "30002:30002"
- "30003:30003"
- "30004:30004"
- "30005:30005"
- "30006:30006"
environment:
- IP=0.0.0.0
- INITIAL_PORT=30001
- DEBUG=true
```

### Steps to Reproduce

1. docker-compose up

Expected : The container to run with redis-server services running per cluster config

Happened: The container runs and I can see all 6 redis-server instaces start up and they all fail with
```RedisCluster-1 | 67:M 20 Aug 2024 16:54:16.502 # Failed to configure LOCALE for invalid locale name.
```

I can also see this warning upon startup
```RedisCluster-1 | bash: warning: setlocale: LC_ALL: cannot change locale (en_US.UTF-8)
```
I believe that is the cause .

The locale is not successfully installed at https://github.com/Grokzen/docker-redis-cluster/blob/7922e1f9a4307231e9416ac7c1963a97347dc8de/Dockerfile#L17

If I exec into the container and run the same locale-gen command it fails.

To rectify it , I needed to run this instead
```echo "LC_ALL=en_US.UTF-8" >> /etc/environment
echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen
echo "LANG=en_US.UTF-8" > /etc/locale.conf
locale-gen en_US.UTF-8
```
Once running that and restarting the container , everything worked correctly.

Summary: `locale-gen en_US.UTF-8` is failing because it is not found in the config files, therefore this results in the servers not starting