helpers: add missing include for BSDs after 3c128679ee8c (#9982)

src/helpers/AsyncDialogBox.cpp:47:23: error: use of undeclared identifier 'read'
   47 |         while ((ret = read(m_pipeReadFd.get(), buf.data(), 1023)) > 0) {
      |                       ^
src/helpers/AsyncDialogBox.cpp:83:9: error: use of undeclared identifier 'pipe'
   83 |     if (pipe(outPipe)) {
      |         ^
src/helpers/AsyncDialogBox.cpp:110:5: error: use of undeclared identifier 'close'
  110 |     close(outPipe[1]);
      |     ^

1 files changed, 1 insertions, 0 deletions

diff --git a/src/helpers/AsyncDialogBox.cpp b/src/helpers/AsyncDialogBox.cpp
index 2ca99ab9..3010d10e 100644
--- a/src/helpers/AsyncDialogBox.cpp
+++ b/src/helpers/AsyncDialogBox.cpp
@@ -1,6 +1,7 @@
 #include "AsyncDialogBox.hpp"
 #include "./fs/FsUtils.hpp"
 #include <csignal>
+#include <unistd.h>
 #include "../managers/eventLoop/EventLoopManager.hpp"
 
 using namespace Hyprutils::OS;