chore(deps): update extractions/setup-just action to v4

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -46,7 +46,7 @@ jobs:
           cargo install cargo-llvm-cov --locked
 
       - name: Install just
-        uses: extractions/setup-just@v3
+        uses: extractions/setup-just@v4
 
       - name: Run CI pipeline
         env: