Bump bcosca/fatfree from 3.6.5 to 3.7.2 in /frameworks/fatfree

Bumps [bcosca/fatfree](https://github.com/bcosca/fatfree) from 3.6.5 to 3.7.2.
- [Release notes](https://github.com/bcosca/fatfree/releases)
- [Commits](bcosca/fatfree@3.6.5...3.7.2)

---
updated-dependencies:
- dependency-name: bcosca/fatfree
  dependency-type: direct:production
...

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

Author: dependabot[bot]