fix(libmatchers): python client API can use `config.get` options

Only `salt-ssh` can't use them actually.

* openssh/libsaltcli.jinja: detect non empty `opts['__cli']` as `api`.

* openssh/libmatchers.jinja: only `ssh` and `unknown` can't use
  `config.get` options `merge` and `delimiter`.

openssh/libmatchers.jinja

 {%-     endif %}
 
 {#-     Add `merge:` option to `salt["config.get"]` if configured #}
-{%-     if cli in ["minion", "local"] and parsed.query_method == "config.get" and config_get_strategy %}
+{%-     if cli not in ["ssh", "unknown"] and parsed.query_method == "config.get" and config_get_strategy %}
 {%-       set query_opts = {
             "merge": config_get_strategy,
             "delimiter": parsed.query_delimiter,
             ~ "'"
           ) %}
 {%-     else %}
-{%-       if cli not in ["minion", "local"] %}
-{%-         do salt["log.error"](
+{%-       if cli in ["ssh", "unknown"] %}
+{%-         do salt["log.warning"](
               log_prefix
               ~ "the 'delimiter' and 'merge' options of 'config.get' are skipped when the salt command type is '"
               ~ cli

openssh/libsaltcli.jinja

 {%-   set cli = 'minion' %}
 {%- elif opts_cli == 'salt-call' %}
 {%-   set cli = 'ssh' if opts_masteropts_cli in ('salt-ssh', 'salt-master') else 'local' %}
+{%- elif opts_cli %}
+{%-   set cli = 'api' %}
 {%- else %}
 {%-   set cli = 'unknown' %}
 {%- endif %}