Try downgrading the docker image to 19

Author: prantlf

.gitlab-ci.yml

@@ -1,6 +1,7 @@
-image: docker:20
+image: docker::19.03.15
 services:
- - docker:dind
+ - name: docker:dind
+ command: ["--mtu=1300"]
 
 variables:
  IMAGE_VER: "3.14"