[gnome-builder] build-aux: tag libgit2 to 1.4.4

[Christian Hergert <chergert src gnome org>]

commit 1aac1e5bd8c148d5aff3eb787647fb5107c02689
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jul 13 19:39:01 2022 -0700

    build-aux: tag libgit2 to 1.4.4

 build-aux/flatpak/org.gnome.Builder.Devel.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build-aux/flatpak/org.gnome.Builder.Devel.json b/build-aux/flatpak/org.gnome.Builder.Devel.json
index 5630c5c58..cf9a16281 100644
--- a/build-aux/flatpak/org.gnome.Builder.Devel.json
+++ b/build-aux/flatpak/org.gnome.Builder.Devel.json
@@ -257,7 +257,7 @@
                 {
                     "type" : "git",
                     "url" : "https://github.com/libgit2/libgit2.git";,
-                    "branch" : "main"
+                    "tag" : "v1.4.4"
                 }
             ]
         },