Update to 0.03
- New upstream release 0.03
- Add the $SIG{__WARN__} hook in an INIT block; we really don't want to
trigger this because of a compile-time warning, and because of a bug in
Test::Builder, this can actually cause the warning to be lost entirely
(https://github.com/Test-More/test-more/issues/729)
- The Test2::Event::Warning event now returns true for increments_count,
which means that the test failure caused by a warning will not be output
as a TAP test line; previously this was just seen as a diag line, which
could be quite confusing
(https://github.com/Test-More/test-more/issues/728)