dev-perl/libwww-perl: Bump to version 6.240.0

dev-perl/libwww-perl: Bump to version 6.240.0

Upstream:
- Removed use of UNIVERSAL::isa and use Try::Tiny instead of eval
- Update "timeout" when reusing sockets
- Fix bug triggered calling simple_request with malformed URL
- Call HTTP::Status constants without &
- bin scripts now use loaded LWPs' version
- Fix bug triggered with auth challenges lacking a viable protocol
- Ensure LWP::Simple re-exports some HTTP::Status functions
- Fix tests that depend on newer HTTP::Message
- Fix Protocol::NNTP prematurely undefining a variable
- Can now set proxy and no_proxy attributes from LWP::UA
  constructor
- Misc doc fixes/overhauls

Package-Manager: Portage-2.3.4, Repoman-2.3.2