[gimp] .gitlab-ci: add appstream package to the CI Debian testing image.

[Jehan <jehanp src gnome org>]

commit 0e5ce8b217709467af527595660c12e43f966658
Author: Jehan <jehan girinstud io>
Date:   Tue May 3 21:56:29 2022 +0200

    .gitlab-ci: add appstream package to the CI Debian testing image.
    
    This should make the AppStream file testing work on the CI.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a3e0b61ad4..842182ece2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -73,7 +73,7 @@ build-image:
     - echo "FROM debian:testing" > Dockerfile
     - echo "RUN apt-get update" >> Dockerfile
     - echo "RUN apt-get install -y --no-install-recommends \\" >> Dockerfile
-    - echo "at-spi2-core build-essential desktop-file-utils ffmpeg ghostscript git glib-networking 
gobject-introspection graphviz graphviz-dev hicolor-icon-theme intltool iso-codes libappstream-glib-dev 
libbz2-dev libdbus-glib-1-dev libexif-dev libgexiv2-dev libgirepository1.0-dev libgtk-3-bin libgtk-3-dev 
libgudev-1.0-dev libjson-glib-dev liblcms2-dev liblzma-dev libmng-dev libmypaint-dev libopenexr-dev 
libpoppler-glib-dev libraw-dev libraw20 librsvg2-dev libspiro-dev libsuitesparse-dev libtiff-dev libtiff5-dev 
libtool libumfpack5 libwebp-dev libwmf-dev libxmu-dev libxpm-dev luajit meson mypaint-brushes poppler-data 
python3 python3-pip valac xauth xsltproc xvfb yelp-tools" >> Dockerfile
+    - echo "appstream at-spi2-core build-essential desktop-file-utils ffmpeg ghostscript git glib-networking 
gobject-introspection graphviz graphviz-dev hicolor-icon-theme intltool iso-codes libappstream-glib-dev 
libbz2-dev libdbus-glib-1-dev libexif-dev libgexiv2-dev libgirepository1.0-dev libgtk-3-bin libgtk-3-dev 
libgudev-1.0-dev libjson-glib-dev liblcms2-dev liblzma-dev libmng-dev libmypaint-dev libopenexr-dev 
libpoppler-glib-dev libraw-dev libraw20 librsvg2-dev libspiro-dev libsuitesparse-dev libtiff-dev libtiff5-dev 
libtool libumfpack5 libwebp-dev libwmf-dev libxmu-dev libxpm-dev luajit meson mypaint-brushes poppler-data 
python3 python3-pip valac xauth xsltproc xvfb yelp-tools" >> Dockerfile
     - echo "RUN pip3 install --no-cache-dir gi-docgen jinja2 Markdown markupsafe pygments toml typogrify" >> 
Dockerfile
 
     - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination 
$CI_REGISTRY_IMAGE:build-debian-latest --cache=true --cache-ttl=120h