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

bird: update to 2.15.1
https://github.com/void-linux/void-packages/pull/49507

Description:
This release fixes a regression related to OSPF PtP links introduced in 2.15 among other things.

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

#### Local build testing
- I built this PR locally for my native architecture, (x86_64-glibc, x86_64-musl)
- I built this PR locally for these architectures:
  - aarch64-musl
  - armv7l
  - armv6l-musl