[CI] Fix cache in CI

[kanerogers]

Background

The cache does not appear to be working correctly:

Run Swatinem/rust-cache@v1
Restoring paths:
    /home/runner/.cargo/bin
    /home/runner/.cargo/.crates2.json
    /home/runner/.cargo/.crates.toml
    /home/runner/.cargo/git
    /home/runner/.cargo/registry/cache
    /home/runner/.cargo/registry/index
    ./target
In directory:
    /home/runner/work/hotham/hotham
Using keys:
    v0-rust-lints-1.64.0-x86_64-unknown-linux-gnu-a55dd[7](https://github.com/leetvr/hotham/actions/runs/3193700087/jobs/5212526747#step:6:8)1d5fb0-4[8](https://github.com/leetvr/hotham/actions/runs/3193700087/jobs/5212526747#step:6:9)8a6[15](https://github.com/leetvr/hotham/actions/runs/3193700087/jobs/5212526747#step:6:16)054f3f86cbd31
    v0-rust-lints-1.64.0-x86_64-unknown-linux-gnu-a55dd71d5fb0
No cache found.