build(deps): bump bedrock2 from 7603637 to ab6f7a1

Bumps [bedrock2](https://github.com/mit-plv/bedrock2) from `7603637` to `ab6f7a1`.
- [Release notes](https://github.com/mit-plv/bedrock2/releases)
- [Commits](mit-plv/bedrock2@7603637...ab6f7a1)

---
updated-dependencies:
- dependency-name: bedrock2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>