Add export for room messages

Part of https://gitlab.com/gitlab-org/gitter/webapp/-/issues/2557
12 jobs for !1990 with 2557-export-room-data in 26 minutes and 41 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Build Unit Test
passed #696839255
gitlab-org
package

00:06:00

passed #696839253
gitlab-org
test

00:11:43

manual #696839254
internal allowed to fail manual
test_e2e
passed #696839252
gitlab-org
validate

00:04:28

 
  Pre Deploy
passed #696839256
gitlab-org
distribute_beta_staging

00:00:37

 
  Deploy
passed #696839257
gitlab-org-docker
containerize

00:07:31

manual #696839258
internal allowed to fail manual
deploy_beta_staging
 
  Security
passed #696839263
gitlab-org
container_scanning

00:01:11

passed #696839260
gitlab-org
dast

00:06:49

passed #696839262
gitlab-org-docker
dependency_scanning

00:05:42

passed #696839259
gitlab-org-docker
sast

00:02:54

passed #696839264
gitlab-org-docker
secret_detection

00:00:31