refactor: use t.TempDir() instead of os.MkdirTemp (#1832)

Signed-off-by: yuhangcangqian <cuibuwei@qq.com>

common/file/file_test.go

@@ -28,7 +28,7 @@ func TestWrite(t *testing.T) {
 	}
 
 	var tests []testTable
-	tempDir := filepath.Join(os.TempDir(), "gct-temp")
+	tempDir := t.TempDir()
 	testFile := filepath.Join(tempDir, "gcttest.txt")
 	switch runtime.GOOS {
 	case "windows":
@@ -49,10 +49,6 @@ func TestWrite(t *testing.T) {
 			t.Errorf("Test %d failed, unexpected err %s\n", x, err)
 		}
 	}
-
-	if err := os.RemoveAll(tempDir); err != nil {
-		t.Errorf("unable to remove temp test dir %s, manual deletion required", tempDir)
-	}
 }
 
 func TestMove(t *testing.T) {