preferred_locale doesnt get saved into the cache if changed during runtime

[Ekcum]

1. Before changing server language (the forth warn is prefered locale of the server)
   

2. Bot gets update via auditlog
   

3. After changing server language
   

4. Restarting the bots saves the new prefered server locale
   

Cargo Toml:

[package]
name = "Bot"
version = "0.1.0"
edition = "2021"

[dependencies]
dotenv = "0.15.0"
env_logger = "0.11.6"
reqwest = { version = "0.12.11", features = ["json"] }
serenity = { version = "0.12.4", features = ["cache"] }
tokio = { version = "1.42.0", features = ["rt-multi-thread"] }
serde = { version = "1.0.217", features = ["derive"] }
log = "0.4.22"
poise = { git = "https://github.com/serenity-rs/poise", branch = "current"}
uuid = { version = "1.11.1", features = ["serde", "v4", "macro-diagnostics", "fast-rng"] }
mpb_common = { path = "../../Libs/mpb_common" }
sys-info = "0.9.1"
chrono = "0.4.39"
websocket = "0.27.1"
futures-util = "0.3.31"
anyhow = "1.0.97"
tokio-tungstenite = "0.21.0"
url = "1.7.2"

[jamesbt365]

If no GUILD_UPDATE event is fired, nothing will be updated in the cache.

[jamesbt365]

Looking into this further, we don't update the field on CacheUpdate for whatever reason