Merge branch '112-update-docker-in-customer-dot-images' into 'master'

Bump Docker version used in CustomerDot images to 20.10.14

Closes #112

See merge request gitlab-org/gitlab-build-images!564

.gitlab/ci/customers.images.yml

@@ -12,7 +12,7 @@ customers:
     matrix:
       - RUBY: ['2.7']
         GIT: ['2.33']
-        DOCKER: ['19.03.1', '']
+        DOCKER: ['20.10.14', '']
 
 # Used by customers-gitlab-com qa e2e test: https://gitlab.com/gitlab-org/customers-gitlab-com/-/blob/staging/.gitlab/ci/e2e.gitlab-ci.yml
 customers-qa-assets:
@@ -22,7 +22,7 @@ customers-qa-assets:
     CHROME: '101'
     NODE: '16.14'
     YARN: '1.22'
-    DOCKER: '19.03.1'
+    DOCKER: '20.10.14'
   parallel:
     matrix:
       - RUBY: ['2.7']