Update check-build.yml with uv clean

Author: Blargian

.github/workflows/check-build.yml

@@ -27,6 +27,7 @@ jobs:
         if: matrix.check_type == 'kbcheck'
         run: |
           curl -Ls https://astral.sh/uv/install.sh | sh
+          uv clean
           uv python install 3.12
       - name: Setup md-lint environment
         if: matrix.check_type == 'md-lint'