Tighten up security on docker compose files (backport #7681)

[garypen]

In our docker compose files (used for integration testing):

- Enable no-new-privileges to prevent privilege escalation attacks.
- Make root file systems read-only where possible

[OE-827]: https://apollographql.atlassian.net/browse/OE-827?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

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This is an automatic backport of pull request #7681 done by Mergify.

[mergify]

Cherry-pick of 68423d9 has failed:

On branch mergify/bp/1.x/pr-7681
Your branch is up to date with 'origin/1.x'.

You are currently cherry-picking commit 68423d91.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   docker-compose.yml

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   dockerfiles/docker-compose-redis.yml

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally