Bump setup-just to v4.

Author: xelandernt

.github/workflows/main.yml

@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: extractions/setup-just@v3
+      - uses: extractions/setup-just@v4
       - uses: astral-sh/setup-uv@v7
         with:
           cache-dependency-glob: "**/pyproject.toml"
@@ -51,7 +51,7 @@ jobs:
           - "3.14"
     steps:
       - uses: actions/checkout@v5
-      - uses: extractions/setup-just@v3
+      - uses: extractions/setup-just@v4
       - uses: astral-sh/setup-uv@v7
         with:
           cache-dependency-glob: "**/pyproject.toml"