modify exceptions decorator should print the support email

[edublancas]

we currently only show the slack link, but we should optionally show the support email

@modify_exceptions(show_email=True)
def something():
    pass

code:

core/src/ploomber_core/exceptions.py

Line 111 in d449c8d

def modify_exceptions(fn):

we can do something like this to prevent API breaks: https://stackoverflow.com/a/39335652/709975