ci: clone with lfs=true for rustfmt job

Required for getting the skip-ci-on-docs-only-changes to work.

.github/workflows/rust.yml

@@ -57,6 +57,10 @@ jobs:
     runs-on: buildjet-8vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v4
+        with:
+          # we don't need lfs for the check to pass, but we do need it for the paths-ignore
+          # option to work correctly.
+          lfs: true
       - name: Load rust cache
         uses: astriaorg/[email protected]
       - run: cargo fmt --all -- --check