feat: Add language support for color code

[Jisan09]

@athul Can add an extra env variable (ie. CODE_LANG) to change the language for the code to get colored text.

Currently its working as txt to write the output in plain text , if add an env to change that we can use language like python or ruby to get colored output like this

[athul]

It'd be great of you could open a PR for this. I'm unsure if it's possible to color text in python. Maybe with CSS? I'm not exactly sure how to do it.

@joe733 what do you think?

[Jisan09]

okay i'll open a pr for this

[yozachar]

Looks good.