Fix: Set BYTEMAN_HOME environment variable when not set

- Set the BYTEMAN_HOME environment variable to the correct path if it's not already set.
- Used fmt.Sprintf to dynamically construct the path for BYTEMAN_HOME.

pkg/utils/env.go

@@ -37,6 +37,7 @@ func SetRuntimeEnv() error {
 		if err != nil {
 			return err
 		}
+		bytemanHome = fmt.Sprintf("%s/tools/byteman", wd)
 	}
 
 	path := os.Getenv("PATH")