dev-perl/Email-MIME: Bump to version 1.940.0

dev-perl/Email-MIME: Bump to version 1.940.0

- Add github remote id

Upstream:
- Pass all args to ->header to header_str
- Guard eval calls in narrower scope
- Remove unused private _address_encode method
- Use case-insensitive header decoding routines
- Ensure MIME header encoding when a value contains non-ascii,
  "=?", sequences of 78 or more non-whitespace characters, or
  leading whitespace
- first line of string generated by mime_encode() is now ensured
  to be less than 76 characters (including the header itself) to
  avoid premature folding.
- Remove redundant private functions
- Warn when multipart messages are erroneously advertised as
  single part, and then upgrade to multipart.
- Do not decode headers that are known not to need it

Package-Manager: Portage-2.3.3, Repoman-2.3.1