I'm using ActiveStorage and I would like to upload ttf font

## Feature request for Cloudinary Ruby SDK
…(If your feature is for other SDKs, please request them there)

- Support for upload `ttf` font, now, cloudiary gem set the content_type for `font/ttf` as image, so it failed to upload.
-
## Explain your use case
… (A high level explanation of why you need this feature)

## Describe the problem you’re trying to solve
… (A more technical view of what you’d like to accomplish, and how this feature will help you achieve it)

## Do you have a proposed solution?
… (yes, no? Please elaborate if needed)