[Nix] Add cmake-format to dev shell

Summary:
Add cmake-lint command to dev shell

Depends on D4294

Test Plan:

nix develop
cmake-lint --help

Reviewers: varun, ashoat, atul

Reviewed By: ashoat, atul

Subscribers: tomek, adrian, abosh

Differential Revision: https://phab.comm.dev/D4564