Reduce CI log output on dependencies steps

.gitlab-ci.yml

@@ -2,8 +2,8 @@ image: ubuntu:bionic
 
 before_script:
   - dpkg --add-architecture i386
-  - apt-get update
-  - apt-get install -y libx11-dev:i386 libc6-dev-i386 libx11-dev libc6-dev build-essential
+  - apt-get update -q
+  - apt-get install -q -y libx11-dev:i386 libc6-dev-i386 libx11-dev libc6-dev build-essential
 
 stages:
   - build
@@ -20,10 +20,9 @@ make:
 unit-tests:
   stage: test
   script:
-    - apt-get install -y software-properties-common
+    - apt-get install -q -y software-properties-common
     - add-apt-repository -y ppa:snaipewastaken/ppa
-    - apt-get update
-    - apt-get install -y criterion-dev
+    - apt-get install -q -y criterion-dev
     - make test
     - ./test/test
   tags: