The Apply method was added when CLI options for constructing the CLI were
rewritten into functional options in [cli@7f207f3]. There was no mention
in the pull request of this method specifically, and this may have been
related to work being done elsewhere on compose-on-kubernetes or the
compose-cli plugin that may have needed options to modify the CLI config
after it was already initialized.
The CLI itself no longer depends on this method since [cli@133279f], and
the only known consumer (docker compose) no longer needs it since [cli@2711800]
and [cli@048e931].
This patch deprecates the method with the intent to remove it in a future
release.
[cli@7f207f3]: 7f207f3f95
[cli@133279f]: 133279fb0d
[cli@2711800]: 2711800430
[cli@048e931]: 048e931b42
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>