v2.3.0

Fixes:

• fixed compiler errors caused by <charconv> with Apple-flavoured clang
• fixed array and table iterators missing iterator_category (#77) (@HazardyKnusperkeks)
• fixed Wuseless-cast warnings on GCC 10 (#75) (@HazardyKnusperkeks)
• fixed formatter not correctly line wrapping in some rare circumstances (#73) (@89z)
• fixed an unnecessary global compiler flag breaking builds when used as a meson subproject (#72) (@jamabr)
• fixed link error caused by <charconv> on emscripten (#71) (@suy)
• fixed ambiguity with the toml::literals inline namespace (#69) (@std-any-emplace)
• fixed formatter emitting superfluous newlines after printing tables (#68) (@std-any-emplace)
• fixed array and table iterators not converting between const and non-const versions of themselves (#67) (@std-any-emplace)
• fixed some parser crashes when given pathologically-malformed UTF-8 (#65) (@sneves)