Update astro.yml

Author: NotNiceKun

.github/workflows/astro.yml

@@ -25,7 +25,7 @@ concurrency:
   cancel-in-progress: false
 
 env:
-  BUILD_PATH: "/_astro/*" # default value when not using subfolders
+  BUILD_PATH: "./_astro/*" # default value when not using subfolders
   # BUILD_PATH: subfolder
 
 jobs: