pacman.conf needed me to add the cachy-mirrorlist for cachy-update to work

When the new iso came out I had a lot of trouble installing it. My system just couldn't find the packages for some reason for the new logon manager. Eventually I'd decided to reinstall my system entirely and start fresh.

I tried toggling on Cachy Update and the system said it wasn't installed. Tried to install it and it said package not found. I tried ranking mirrors to see if that did anything, but nothing changed. Neither did resetting the keyring.

I remembered an update issue a while back from multilib getting commented out of my pacman.conf, so I decided to look at my pacman.conf file. It looked fine. Despite this, I still thought pacman.conf might be able to fix it somehow.

I did some searching and found a 2024 thread where someone had overwritten his pacman.conf for cachy and needed a new copy. The copy he was provided had this entry, which I didn't see in my pacman.conf:

```
[cachyos]
SigLevel = Optional TrustAll
Include = /etc/pacman.d/cachyos-mirrorlist
```

I added this to the end of my own pacman.conf and tried installing cachy-update. It worked. I'm 99% sure this was the source of my prior issues as well.

I looked at the current pacman.conf in the github and it doesn't look to come with this entry, so I assume it doesn't usually need it in order to work? If that's the case, I don't know why it's messing up on my system specifically, but it may be worth looking into. This install is barely a month old, it shouldn't be breaking yet.

My system specs, if any of them end up relevant:

- Linux 6.18.8-1-cachyos
- AMD Ryzen 7 5800X
- AMD Radeon RX 6700 XT
- 32 GB RAM

ETA: someone on Reddit brought this up, so thought I'd add it in: I didn't have any pacman.conf.pacnew anywhere.