Chore: remove deprecated ioutil

hub/executor/executor.go

@@ -2,7 +2,6 @@ package executor
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"sync"
 
@@ -33,7 +32,7 @@ func readConfig(path string) ([]byte, error) {
 	if _, err := os.Stat(path); os.IsNotExist(err) {
 		return nil, err
 	}
-	data, err := ioutil.ReadFile(path)
+	data, err := os.ReadFile(path)
 	if err != nil {
 		return nil, err
 	}