pin uv versino

Author: petercrocker

.github/workflows/ci.yml

@@ -52,7 +52,9 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: "Install uv"
-        uses: "astral-sh/setup-uv@v5"
+        uses: "astral-sh/setup-uv@v7"
+        with:
+          version: "0.9.18"
 
       - name: "Install dependencies"
         run: "uv sync --group dev"
@@ -155,7 +157,9 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: "Install uv"
-        uses: "astral-sh/setup-uv@v5"
+        uses: "astral-sh/setup-uv@v7"
+        with:
+          version: "0.9.18"
 
       - name: "Install dependencies"
         run: "uv sync"