[nautilus/wip/cdavis/fix-libportal-ci] flatpak: Use `main` branch for libportal

[Christopher Davis <christopherdavis src gnome org>]

commit f5b88e99e9bd30d704761b8fba2cc8b7c53f60b0
Author: Christopher Davis <christopherdavis gnome org>
Date:   Tue Feb 8 09:41:19 2022 -0800

    flatpak: Use `main` branch for libportal
    
    libportal changed the name of their primary branch to
    `main`. `flatpak` can't automatically handle `main`,
    so we need to specify it manually.
    
    Should fix the recent CI failures.

 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 f952cfeed..a35d17303 100644
--- a/build-aux/flatpak/org.gnome.Nautilus.json
+++ b/build-aux/flatpak/org.gnome.Nautilus.json
@@ -125,7 +125,8 @@
       "sources" : [
         {
           "type": "git",
-          "url": "https://github.com/flatpak/libportal.git";
+          "url": "https://github.com/flatpak/libportal.git";,
+          "branch": "main"
         }
       ]
     },
diff --git a/build-aux/flatpak/org.gnome.Nautilus.yml b/build-aux/flatpak/org.gnome.Nautilus.yml
index af617396f..a0dc3ff11 100644
--- a/build-aux/flatpak/org.gnome.Nautilus.yml
+++ b/build-aux/flatpak/org.gnome.Nautilus.yml
@@ -92,6 +92,7 @@ modules:
   sources:
   - type: git
     url: https://github.com/flatpak/libportal.git
+    branch: main
 - buildsystem: meson
   builddir: true
   name: nautilus