Bump tools/bids-examples from 47c4da1 to 6470461 (#87)

Bumps [tools/bids-examples](https://github.com/bids-standard/bids-examples) from `47c4da1` to `6470461`.
- [Release notes](https://github.com/bids-standard/bids-examples/releases)
- [Commits](bids-standard/bids-examples@47c4da1...6470461)

---
updated-dependencies:
- dependency-name: tools/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>