MB-54273 Allow tlsv1.3 to be set for tls min version

Removes validation from couchbase-cli as the ns_server validation is
sufficient.

Change-Id: I1acf036eb7b03dbe0d4e61ae5abc5592e85deff6
Reviewed-on: https://review.couchbase.org/c/couchbase-cli/+/181870
Tested-by: Build Bot <build@couchbase.com>
Reviewed-by: James Lee <james.lee@couchbase.com>

Author: Peter-Searby

cbmgr.py

@@ -3228,8 +3228,8 @@ def __init__(self):
                 'strict'],
             default=None,
             help="Set cluster encryption level, only used when cluster encryption enabled.")
-        group.add_argument('--tls-min-version', dest='tls_min_version', metavar='<tlsv1|tlsv1.1|tlsv1.2>',
-                           choices=['tlsv1', 'tlsv1.1', 'tlsv1.2'], default=None, help='Set the minimum TLS version')
+        group.add_argument('--tls-min-version', dest='tls_min_version', default=None,
+                           help='Set the minimum TLS version')
         group.add_argument('--tls-honor-cipher-order', dest='tls_honor_cipher_order', metavar='<1|0>',
                            choices=['1', '0'], help='Specify or not the cipher order has to be followed.', default=None)
         group.add_argument('--cipher-suites', metavar='<ciphers>', default=None,

test/test_cli.py

@@ -1353,9 +1353,6 @@ def test_set_settings(self):
         self.assertIn('POST:/settings/security', self.server.trace)
         self.rest_parameter_match(expected_params)
 
-    def test_invalid_choice(self):
-        self.system_exit_run(self.command + ['--set', '--tls-min-version', 'tlsv2'], self.server_args)
-
     def test_cipher_suites_empty(self):
         self.no_error_run(self.command + ['--set', '--cipher-suites', ''],
                           self.server_args)