* Don't deprecate certbot-auto quite yet

* Remove centos6 test farm tests

* undo changes to test farm test scripts

(cherry picked from commit e5113d5)

Remove centos6 tests 1.10.x

Co-authored-by: Adrien Ferrand <ferrand.ad@gmail.com>

Fixes #8495.

To further explain the problem here, `modify_kwargs_for_default_detection` as called in `add` is simplistic and doesn't always work. See #6164 for one other example.

In this case, were bitten by the code https://github.com/certbot/certbot/blob/d1e7404358c05734aaf436ef3c9d709029d62b09/certbot/certbot/_internal/cli/helpful.py#L393-L395

The action used for deprecated arguments isn't in `ZERO_ARG_ACTIONS` so it assumes that all deprecated flags take one parameter.

Rather than trying to fix this function (which I think can only realistically be fixed by #4493), I took the approach that was previously used in `HelpfulArgumentParser.add_deprecated_argument` of bypassing this extra logic entirely. I adapted that function to now call `HelpfulArgumentParser.add` as well for consistency and to make testing easier.

* Rename deprecated arg action class

* Skip extra parsing for deprecated arguments

* Add back test of --manual-public-ip-logging-ok

* Add changelog entry

(cherry picked from commit 5f73274)