Add missing wget.

.gitlab-ci.yml

@@ -21,6 +21,7 @@ test:
       libffi-dev
       libglib2.0-dev
       libssl-dev
+      wget
     # yamllint disable-line rule:line-length
     - wget https://github.com/cloudbees-oss/juxr/releases/download/0.1.22/juxr-x86_64-unknown-linux-gnu.tar.gz -O - | tar -xzC /usr/local/bin
     - |-