pin properly

Author: rambleraptor

.github/workflows/python-ci-polaris.yml

@@ -48,7 +48,7 @@ jobs:
         with:
           python-version: '3.12'
       - name: Install UV
-        uses: astral-sh/setup-uv@v7@5a095e7a2014a4212f075830d4f7277575a9d098 # v7.3.1
+        uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098 # v7.3.1
         with:
           enable-cache: true
       - name: Install system dependencies