Install fakesnow separately in snowflake CI to allow sqlglot version mismatch

Author: nicosuave

.github/workflows/integration.yml

@@ -110,7 +110,9 @@ jobs:
         run: uv python install 3.12
 
       - name: Install dependencies
-        run: uv sync --extra snowflake --extra dev
+        run: |
+          uv sync --extra snowflake --extra dev
+          uv pip install "fakesnow>=0.9.0"
 
       - name: Run Snowflake integration tests
         env: