[gnome-builder] .gitlab-ci.yml: use node18 from flathub-beta

[Christian Hergert <chergert src gnome org>]

commit 4e5298a13f5296c8bfdcf52b484991468d0c9d4b
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jul 13 09:53:58 2022 -0700

    .gitlab-ci.yml: use node18 from flathub-beta

 .gitlab-ci.yml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5f33f19fd..61c36ce72 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -15,8 +15,7 @@ flatpak:
     BUNDLE: "gnome-builder-git.flatpak"
   before_script:
     - flatpak --user install -y org.freedesktop.Sdk.Extension.llvm14//22.08beta
-    - flatpak --user install -y --from 
https://dl.flathub.org/build-repo/97448/org.freedesktop.Sdk.Extension.node18.flatpakref
-    # - flatpak --user install -y org.freedesktop.Sdk.Extension.node18//22.08
+    - flatpak --user install -y org.freedesktop.Sdk.Extension.node18//22.08beta
 
 nightly:
   extends: '.publish_nightly'