Fix review comment (#95)

Author: leshikus

.github/dockerfiles/runner/Dockerfile

@@ -6,7 +6,7 @@ RUN gpasswd --delete runner sudo
 
 RUN set -ex; \
     export DEBIAN_FRONTEND=noninteractive; \
-    echo "deb [arch=amd64 signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" > /etc/apt/sources.list.d/github-cli.list;\
+    echo "deb [arch=amd64 signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" > /etc/apt/sources.list.d/github-cli.list; \
     curl -sSL https://cli.github.com/packages/githubcli-archive-keyring.gpg > /usr/share/keyrings/githubcli-archive-keyring.gpg; \
     apt-get update -y; \
     apt-get install -y --no-install-recommends --fix-missing \