Change inbucket default port from 10080 to 9001 (#18145)

build/gitlab-dc.common.yml

@@ -11,7 +11,7 @@ services:
     image: ${CI_REGISTRY}/mattermost/ci/images/inbucket:v3.0.0-rc1-2-gc64e7a6-1
     restart: always
     environment:
-      INBUCKET_WEB_ADDR: "0.0.0.0:10080"
+      INBUCKET_WEB_ADDR: "0.0.0.0:9001"
       INBUCKET_POP3_ADDR: "0.0.0.0:10110"
       INBUCKET_SMTP_ADDR: "0.0.0.0:10025"
   openldap: