Install Subprocess Utils Header in plugin-headers

Need to use this in plugins

PiperOrigin-RevId: 846375584
Change-Id: Id741a44f162ae32dceed940a1041967b59da71f2
1 file changed
tree: 7634e2db21da984391a7edd0e72dd05d0a65167e
  1. linux/
  2. .gitmodules