break up script section and add ''

.gitlab-ci.yml

@@ -15,12 +15,11 @@ febio-dl:
   stage: pre-build
   script:
     - apk add --no-cache curl
-    - |
-      cmd="aws s3 presign s3://$LTS_BUCKET/$LTS_FILE_KEY --endpoint-url $LTS_ENDPOINT --expires-in 600 --output text"
-      echo "Presign Command: $cmd"
-      URL=$(cmd)
-      echo "Pre-signed URL: $URL"
-      curl -o febio_installer.zip "$URL"
+    - 'cmd="aws s3 presign s3://$LTS_BUCKET/$LTS_FILE_KEY --endpoint-url $LTS_ENDPOINT --expires-in 600 --output text"'
+    - 'echo "Presign Command: $cmd"'
+    - 'URL=$(cmd)'
+    - 'echo "Pre-signed URL: $URL"'
+    - 'curl -o febio_installer.zip "$URL"'
   artifacts:
     paths:
       - "installer/"