Fixes #179: Add missing /tool/e-mail parameter "tls" (#180)

* Fixes #179: Add missing /tool/e-mail parameter "tls"

In the
[documentation](https://help.mikrotik.com/docs/display/ROS/E-mail#Email-Properties) the parameter "tls" is mentioned but it cannot be used. The old "start-tls" parameter is not mentioned there (only on the [old documentation](https://wiki.mikrotik.com/wiki/Manual:Tools/email#Properties)).
Trying to use the paramter "tls" lead to the erro message `FAILED! => {"changed": false, "msg": "Unknown key \"tls\"."}`.

* Add changelog fragment

* Update changelogs/fragments/180-fix-tls-in-tool-email.yml

As suggested by felixfontein

Co-authored-by: Felix Fontein <felix@fontein.de>

---------

Co-authored-by: Johannes Münch <git@washiza.eu>
Co-authored-by: Felix Fontein <felix@fontein.de>

changelogs/fragments/180-fix-tls-in-tool-email.yml

@@ -0,0 +1,2 @@
+bugfixes:
+ - api_modify, api_info - add missing parameter ``tls`` for the ``tool e-mail`` path (https://github.com/ansible-collections/community.routeros/issues/179, https://github.com/ansible-collections/community.routeros/pull/180).

plugins/module_utils/_api_data.py

@@ -2451,6 +2451,7 @@ def join_path(path):
  'password': KeyInfo(default=''),
  'port': KeyInfo(default=25),
  'start-tls': KeyInfo(default=False),
+ 'tls': KeyInfo(default=False),
  'user': KeyInfo(default=''),
  },
  ),