Bump tests/bids-examples from 2f634a1 to 507df66 (#393)

Bumps [tests/bids-examples](https://github.com/bids-standard/bids-examples) from `2f634a1` to `507df66`.
- [Release notes](https://github.com/bids-standard/bids-examples/releases)
- [Commits](bids-standard/bids-examples@2f634a1...507df66)

---
updated-dependencies:
- dependency-name: tests/bids-examples
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>