[gobject-introspection] gir: Update introspection data for GLib 2.73.3

[Marco Trevisan <marcotrevi src gnome org>]

commit 2206d47348c6ed000fc88754ecdf2d4e31750bcb
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Sat Aug 6 01:28:40 2022 +0200

    gir: Update introspection data for GLib 2.73.3

 gir/gio-2.0.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/gir/gio-2.0.c b/gir/gio-2.0.c
index 59d4686b1..8f58cb73d 100644
--- a/gir/gio-2.0.c
+++ b/gir/gio-2.0.c
@@ -288,6 +288,11 @@
  * example if the process was launched via D-Bus). The `pid` may not be
  * set at all in subsequent releases.
  *
+ * On Windows, `pid` is guaranteed to be valid only for the duration of the
+ * #GAppLaunchContext::launched signal emission; after the signal is emitted,
+ * GLib will call g_spawn_close_pid(). If you need to keep the #GPid after the
+ * signal has been emitted, then you can duplicate `pid` using `DuplicateHandle()`.
+ *
  * Since: 2.36
  */