Bump FMS (#91)

Bumps the gfdl group with 1 update: [submodules/SHiELD_SRC/FMS](https://github.com/NOAA-GFDL/FMS).


Updates `submodules/SHiELD_SRC/FMS` from `9bef9d9` to `96e97c0`
- [Release notes](https://github.com/NOAA-GFDL/FMS/releases)
- [Commits](NOAA-GFDL/FMS@9bef9d9...96e97c0)

---
updated-dependencies:
- dependency-name: submodules/SHiELD_SRC/FMS
  dependency-version: 96e97c0e271167dd42700b5ed28fb1fe85d7ecce
  dependency-type: direct:production
  dependency-group: gfdl
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]