libportal: upgrade 0.9.0 -> 0.9.1

Changelog:
===========
- Meson 0.55.0 is required
- Fix memory management in the Input Capture portal code
- Correct the type used for GObject signal connections
- Remove wrong '(closure)' annotations, fixing GObject-Introspection warnings
- Don't require a C++ compiler for the build architecture
- Fix Meson warnings
- Consistently use '#pragma once'
- Initialize all g_autoptr variables

(From OE-Core rev: 4a0ee769cfdb5753cdd5e245d109f0158dd7a754)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-gnome/libportal/libportal_0.9.1.bb

@@ -7,7 +7,7 @@ LICENSE = "LGPL-3.0-only"
 LIC_FILES_CHKSUM = "file://COPYING;md5=3000208d539ec061b899bce1d9ce9404"
 
 SRC_URI = "git://github.com/flatpak/${BPN}.git;protocol=https;branch=main"
-SRCREV = "731e7410fa5765e7c4eb76a51140a19637620c13"
+SRCREV = "8f5dc8d192f6e31dafe69e35219e3b707bde71ce"
 S = "${WORKDIR}/git"
 
 inherit meson gi-docgen gobject-introspection vala features_check pkgconfig