New comment by TheStilbruch on void-packages repository

https://github.com/void-linux/void-packages/pull/51217#issuecomment-2251848867

Comment:
> maybe a `srcpkgs/pinephone-uboot/update` file can be made, fetching the data from https://docs.u-boot.org/en/latest/develop/release_cycle.html#previous-releases

I am not sure I understand the syntax of these update files too well. The manual page explains it some but not enough to do what I want. 

Here's what I have

```conf
site="https://docs.u-boot.org/en/latest/develop/release_cycle.html"
pkgname="u-boot"
pattern="v\K(\d+)\.(\d+)(?=</a>)"
```