gofmt: 清理 admin/executor 测试文件的对齐空格

这两个文件在 HEAD 上就未通过 gofmt, 但 go test 不检查 gofmt,
所以一直没暴露. 修一下让 gofmt -l . 干净, 否则新加的 commit
之前都得先 stash.

纯格式变更, 无逻辑变化.

Co-Authored-By: Claude <noreply@anthropic.com>

internal/executor/spark_submit_test.go

@@ -29,8 +29,8 @@ func TestRun_FakeBinary(t *testing.T) {
 	defer cancel()
 
 	res, err := Run(ctx, SparkSubmitOpts{
-		Binary: "/bin/echo",
-		Args:   []string{"--master", "yarn; rm -rf /tmp/this-should-not-exist"},
+		Binary:  "/bin/echo",
+		Args:    []string{"--master", "yarn; rm -rf /tmp/this-should-not-exist"},
 		Timeout: 3 * time.Second,
 	})
 	if err != nil {
@@ -54,8 +54,8 @@ func TestRun_NonZeroExit(t *testing.T) {
 		t.Skip("uses unix binary")
 	}
 	res, err := Run(context.Background(), SparkSubmitOpts{
-		Binary: "/bin/sh",
-		Args:   []string{"-c", "exit 7"},
+		Binary:  "/bin/sh",
+		Args:    []string{"-c", "exit 7"},
 		Timeout: 3 * time.Second,
 	})
 	if err == nil {