Update ci.yml

Author: scivision

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - run: |
-        sudo apt-get update -y
+        sudo apt-get update -yq
         sudo apt-get install -yq --no-install-suggests --no-install-recommends octave > /dev/null
     - run: octave --eval "test_matlab; exit"
       working-directory: tests