ci: limit uv to version that works with nox

Signed-off-by: Henry Schreiner <[email protected]>

Author: henryiii

.github/workflows/reusable-cookie.yml

@@ -41,6 +41,8 @@ jobs:
 
       - name: Setup uv
         uses: astral-sh/setup-uv@v6
+        with:
+          version: "0.6.x"
 
       - name: Install nox
         run: uv tool install nox
@@ -105,6 +107,8 @@ jobs:
 
       - name: Setup uv
         uses: astral-sh/setup-uv@v6
+        with:
+          version: "0.6.x"
 
       - name: Install nox
         run: uv tool install nox