fix: add default email policy to mail body
fix: add default email policy to mail body

the default policy encodes special characters correctly, and is not set
by _default_ unless python3.8 is used. so we'll explicitly define the
policy to be used for the email body

Signed-off-by: Chinmay D. Pai <ab3234b32bd9ecd2892f3eb0b557ab584a8ff0cf@gmail.com>
(cherry picked from commit c9c013d6219d006d3eda0b1d6cc705cf4cfdb573)

vjFaLk/frappe,vjFaLk/frappe,vjFaLk/frappe,vjFaLk/frappe