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

yaml-cpp: update to 0.7.0
https://github.com/void-linux/void-packages/pull/37417

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

A simple CMake project finds new `yaml-cpp` as packaged, compiles a basic program to parse YAML and runs. Both `rstudio` and `facter` launch without complaints and `facter` outputs YAML, but I haven't tested the dependants more thoroughly.

The `yaml-cpp` release broke its own cmake config, but I've pulled an upstream patch to restore functionality. (The patch is necessary to allow `rstudio` to build.)

#### Local build testing
- I built this PR locally for all official archs

cc: @Duncaen