Bump extractions/setup-just from 3 to 4

Bumps [extractions/setup-just](https://github.com/extractions/setup-just) from 3 to 4.
- [Release notes](https://github.com/extractions/setup-just/releases)
- [Commits](extractions/setup-just@v3...v4)

---
updated-dependencies:
- dependency-name: extractions/setup-just
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
       - uses: actions/checkout@v6
         with:
           fetch-depth: 0
-      - uses: extractions/setup-just@v3
+      - uses: extractions/setup-just@v4
       - uses: coursier/setup-action@v3.0.0
         with:
           apps: scala-cli sbt