v0.45.4

[timothysmith0609]

• (performance) Preload commit statuses and check runs when serializing deploys. DeploySerializer
  embeds every commit of a deploy and CommitSerializer reads each commit's status, so rendering a
  deploy issued two queries per commit. On a deploy spanning thousands of commits that is thousands of
  round trips held open for the life of the request: in production GET /api/stacks/:stack/tasks
  responses reached 119s and pushed web processes into their memory limit. The commits relation now
  preloads, and both API index actions preload the task's user and commits.
• (bugfix) Fix task output flickering and freezing on long logs. Clusterize sized its virtual-scroll
  spacers with an inline style attribute produced by outerHTML, which a style-src Content
  Security Policy without 'unsafe-inline' refuses to apply. The spacers collapsed to zero height,
  so the log viewport oscillated and stopped following new output. Heights are now applied via
  CSSOM after insertion.