There's a closed pull request on the void-packages repository

c-ares: update to 1.30.0
https://github.com/void-linux/void-packages/pull/50821

Description:
c-ares' new version is 1.30.0, and the current 1.29.0 doesn't build due to a now-missing download link. Fix both problems at once to get the package building again.

I've tested these changes on several architectures for glibc and musl.

I've also fixed the problems that were brought up in my previous PR (#50739) for this change (changed the commit message, updated the homepage link).  Thanks for the pointers, that was my first attempt at submitting changes to upstream Void before, hopefully this is better.

#### Testing the changes
- I tested the changes in this PR: **YES**

#### Local build testing
- I built this PR locally for my native architecture, x86_64-glibc
- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - (cross) i686
  - (cross) i686-musl
  - (cross) mips-musl
  - (cross) ppc
  - ppc
  - (cross) armv6l-musl
  - (cross) armv6l
  - (cross) aarch64-musl
  - (cross) aarch64