fix(sb_fs): update build.rs (#459)

Author: nyannyacha

crates/sb_fs/build.rs

@@ -1,7 +1,7 @@
 use std::path::Path;
 
 fn main() {
-    dbg!(Path::new("./tests/.env").exists());
+    println!("cargo::rerun-if-changed=tests/.env");
     if Path::new("./tests/.env").exists() {
         println!("cargo:rustc-cfg=dotenv")
     }