Is your feature request related to a problem? Please describe.
Openbuddy has upgraded the chat template, some of their models are trained to follow the template strictly. Please consider update the template or provide method to overwrite the existing one.
The new template: https://github.com/OpenBuddy/OpenBuddy#prompt-format

Describe the solution you'd like
Update the template.
The new template: https://github.com/OpenBuddy/OpenBuddy#prompt-format

Describe alternatives you've considered
Provide a method to overwrite the existing one.

Additional context
Affected models Openbuddy Mixtral 7Bx8 V16.x, you may verify with the model. If we don't use the new template, model will mostly tend to ignore system prompt and user instructions.