Bump bootsnap from 1.7.3 to 1.7.7

Bumps [bootsnap](https://github.com/Shopify/bootsnap) from 1.7.3 to 1.7.7.
- [Release notes](https://github.com/Shopify/bootsnap/releases)
- [Changelog](https://github.com/Shopify/bootsnap/blob/master/CHANGELOG.md)
- [Commits](rails/bootsnap@v1.7.3...v1.7.7)

---
updated-dependencies:
- dependency-name: bootsnap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]