Bump backend and cli submodules to include fix for #1062 (#1066)

* Bump backend and cli submodules to include fix for #1062

Pulls in the merged fixes for the WebSocket disconnect that occurred
during large manual log file uploads (e.g. TC-CADMIN-1.17):

- backend f49b828..cb44885: batches uploaded log lines into chunks
  before logging (instead of one logger.info() call per line, which
  stalled the event loop long enough to trip the WebSocket's
  keepalive), and raises the production ws_ping_timeout to 60s
  (certification-tool-backend#343).
- cli 79cb747..0f00720: stops misreporting a successful upload as
  "Unexpected error uploading file" when the confirmation send fails
  after the file was already uploaded, and strips stray whitespace/CR
  from the uploaded file path prompt input (certification-tool-cli#105).

* Update docker-compose.yml backend image tag to cb44885 to match submodule
# Conflicts:
#	backend
#	cli
#	docker-compose.yml

Author: rquidute