Use "connect_read_pipe" on Unix

platformio/debug/process/server.py

@@ -64,7 +64,7 @@ class DebugServerProcess(DebugBaseProcess):
         openocd_pipe_allowed = all(
             [not self.debug_options["port"], "openocd" in server_executable]
         )
-        openocd_pipe_allowed = False
+        # openocd_pipe_allowed = False
         if openocd_pipe_allowed:
             args = []
             if server["cwd"]: