Bump com.mebigfatguy.fb-contrib:fb-contrib from 7.6.3 to 7.6.4

Bumps [com.mebigfatguy.fb-contrib:fb-contrib](https://github.com/mebigfatguy/fb-contrib) from 7.6.3 to 7.6.4.
- [Commits](https://github.com/mebigfatguy/fb-contrib/compare/v7.6.3...v7.6.4

)

---
updated-dependencies:
- dependency-name: com.mebigfatguy.fb-contrib:fb-contrib
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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