try fix just in CI

Author: bckohan

.github/workflows/test.yml

@@ -86,6 +86,8 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install Just
       uses: extractions/setup-just@v2
+      with:
+        just-version: '1.39.0'
     - name: Install uv
       uses: astral-sh/setup-uv@v5
       with: