Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -0,0 +1,17 @@
+# sulix gitlab CI repo checker.
+image: debian:testing
+
+index:
+  stage: index
+  script:
+    - apt update
+    - apt full-upgrade -y
+    - apt install meson gcc valac git --no-install-recommends -y
+    - apt install libarchive-dev libreadline-dev libcurl4-openssl-dev libbrotli-dev --no-install-recommends -y
+    - git clone https://gitlab.com/sulix/devel/sources/ymp
+    - cd ymp
+    - meson build -Dlibbrotli=false --prefix=/usr
+    - ninja -C build install
+    - cd ../ && rm -rf ymp
+    - bash update.sh
+