`tool-call`: allow `--chat-template chatml` w/ `--jinja`, default to chatml upon parsing issue, avoid double bos (#11616)
* tool-call: allow `--jinja --chat-template chatml`
* fix double bos issue (drop bos/eos tokens from jinja template)
* add missing try catch around jinja parsing to default to chatml
* Simplify default chatml logic