fix(duckdb): preserve static CRT in Windows CI

.github/workflows/ci.yml

@@ -156,6 +156,7 @@ jobs:
     env:
       CARGO_INCREMENTAL: "0"
       CARGO_TARGET_DIR: ${{ github.workspace }}/target/duckdb-driver
+      RUSTFLAGS: -C debuginfo=line-tables-only -C target-feature=+crt-static
       RUSTC_WRAPPER: sccache
     steps:
       - uses: actions/checkout@v5