[nautilus] flatpak: Pin libportal dependency

[António Fernandes <antoniof src gnome org>]

commit b2c67de28afffd6a939842ee7d969975afaf87fc
Author: António Fernandes <antoniojpfernandes gmail com>
Date:   Mon Nov 8 20:01:43 2021 +0000

    flatpak: Pin libportal dependency
    
    Changes in libportal main branch break the CI and require dependency
    changes which we shouldn't make on stable branch.
    
    (cherry picked from commit 67927cb09b6bae7c834e4563f2e7fba2fa4aa452)

 build-aux/flatpak/org.gnome.Nautilus.json | 3 ++-
 build-aux/flatpak/org.gnome.Nautilus.yml  | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/build-aux/flatpak/org.gnome.Nautilus.json b/build-aux/flatpak/org.gnome.Nautilus.json
index e4ab02ef2..fecae9ea1 100644
--- a/build-aux/flatpak/org.gnome.Nautilus.json
+++ b/build-aux/flatpak/org.gnome.Nautilus.json
@@ -123,7 +123,8 @@
       "sources" : [
         {
           "type": "git",
-          "url": "https://github.com/flatpak/libportal.git";
+          "url": "https://github.com/flatpak/libportal.git";,
+          "tag": "0.4"
         }
       ]
     },
diff --git a/build-aux/flatpak/org.gnome.Nautilus.yml b/build-aux/flatpak/org.gnome.Nautilus.yml
index 748ced249..06c6b2434 100644
--- a/build-aux/flatpak/org.gnome.Nautilus.yml
+++ b/build-aux/flatpak/org.gnome.Nautilus.yml
@@ -90,6 +90,7 @@ modules:
   sources:
   - type: git
     url: https://github.com/flatpak/libportal.git
+    tag: 0.4
 - buildsystem: meson
   builddir: true
   name: nautilus