install just before linting

Signed-off-by: Jorge Prendes <jorge.prendes@gmail.com>

Author: jprendes

.github/workflows/ci.yml

@@ -58,6 +58,7 @@ jobs:
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: rustfmt, clippy
+      - uses: extractions/setup-just@v3
       - name: Setup nightly toolchain
         shell: bash
         run: rustup toolchain install nightly --component rustfmt # needed to run rustfmt in nightly toolchain