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

https://github.com/skmpz/void-packages jsoncpp-1.9.5
https://github.com/void-linux/void-packages/pull/40722

jsoncpp: update to 1.9.5.
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#### Testing the changes
- I tested the changes in this PR: **YES**

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#### Local build testing
- I built all the changed packages for the following archs:
  - x86_64
  - i686
  - aarch64 (cross on x86_64)
  - armv7l (cross on x86_64)
  - x86_64-musl
  - aarch64-musl (cross on x86_64-musl)
  - armv6l-musl (cross on x86_64-musl)

[ci skip]

A patch file from https://github.com/void-linux/void-packages/pull/40722.patch is attached