Bump lib/CPP_BIDS from 4c75747 to 19f086c

Bumps [lib/CPP_BIDS](https://github.com/cpp-lln-lab/CPP_BIDS) from `4c75747` to `19f086c`.
- [Release notes](https://github.com/cpp-lln-lab/CPP_BIDS/releases)
- [Commits](cpp-lln-lab/CPP_BIDS@4c75747...19f086c)

---
updated-dependencies:
- dependency-name: lib/CPP_BIDS
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>