Bump extractions/setup-just from 2 to 3 (#748)

Bumps [extractions/setup-just](https://github.com/extractions/setup-just) from 2 to 3.
- [Release notes](https://github.com/extractions/setup-just/releases)
- [Commits](extractions/setup-just@v2...v3)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -96,7 +96,7 @@ jobs:
             pyproject.toml
 
       - name: Set up just
-        uses: extractions/setup-just@v2
+        uses: extractions/setup-just@v3
 
       - name: Build documentation
         run: just docs
@@ -116,7 +116,7 @@ jobs:
             pyproject.toml
 
       - name: Set up just
-        uses: extractions/setup-just@v2
+        uses: extractions/setup-just@v3
 
       - name: Build package
         run: just build