devops: move CircleCI to run against dev version of Docker container (#2969)

Since we now auto-publish docker container, we can move CircleCI
to use the tip-of-tree docker images.

Author: aslushnikov

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: mcr.microsoft.com/playwright:bionic
+      - image: mcr.microsoft.com/playwright:dev
     steps:
       - checkout