ci: Include tecla

It is now used by gnome-shell to preview the keyboard layout.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3140>

.gitlab-ci.yml

@@ -83,7 +83,7 @@ variables:
     - .skip-git-clone
   variables:
     FDO_DISTRIBUTION_VERSION: 38
-    BASE_TAG: '2023-07-22.0'
+    BASE_TAG: '2023-08-01.0'
     MUTTER_USER: 'meta-user'
     FDO_DISTRIBUTION_PACKAGES:
       asciidoc
@@ -141,6 +141,10 @@ variables:
         https://gitlab.gnome.org/GNOME/libadwaita.git \
         main . 72f512f01113a64cf332ae0f79becfc487d54b56
 
+      ./.gitlab-ci/install-meson-project.sh \
+        https://gitlab.gnome.org/GNOME/tecla.git \
+        main . 45.alpha
+
       ./.gitlab-ci/install-meson-project.sh \
         -Dtests=disabled \
         https://gitlab.freedesktop.org/libinput/libei.git \