There is an updated pull request by ericonr against master on the void-packages repository

https://github.com/ericonr/void-packages curl
https://github.com/void-linux/void-packages/pull/25764

curl: update to 7.73.0.
Remove outdated patch, remove libcurl-gnutsl symlink from libcurl, and
add zstd compression support.

A patch file from https://github.com/void-linux/void-packages/pull/25764.patch is attached