ci: Use GNOME 46 image and runtime

.gitlab-ci/create_release.yml

@@ -31,7 +31,7 @@ release-tarball:
 
 test-tarball:
   stage: test
-  image: 'quay.io/gnome_infrastructure/gnome-runtime-images:gnome-45'
+  image: 'quay.io/gnome_infrastructure/gnome-runtime-images:gnome-46'
   tags:
     - flatpak
   script:

.gitlab-ci/org.gnome.Fractal.CiTest.json

@@ -1,7 +1,7 @@
 {
     "app-id": "org.gnome.Fractal",
     "runtime": "org.gnome.Platform",
-    "runtime-version": "45",
+    "runtime-version": "46",
     "sdk": "org.gnome.Sdk",
     "sdk-extensions": [
         "org.freedesktop.Sdk.Extension.rust-stable",