fix ci

Author: sebsto

scripts/ubuntu-install-swift.sh

@@ -53,10 +53,11 @@ sudo chmod a+r /etc/apt/keyrings/docker.asc
 
 # Add the repository to Apt sources:
 # shellcheck source=/etc/os-release
+# shellcheck disable=SC1091
 . /etc/os-release
 echo \
   "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
-  "$VERSION_CODENAME" stable" | \
+  $VERSION_CODENAME stable" | \
   sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
 sudo apt-get update