RECOMMENDED UPGRADE ASAP

Fixes

IMPORTANT: Critical fix to writing out empty strings. Insufficient allocation would occur when needing to allocate more memory in the buffer. This would result in corrupted output. (Thanks @sweihub)
Fixed map writing when using the quoted_num wrapper (Thanks @huangminghuang)
[[maybe_unused]] attribute added to hide warnings for unused static constexpr name for macros
No longer using T alias in GLZ_LOCAL_META, which allows this macros to be used in classes templated with <class T>
seek_impl consistent result_t fix (Thanks @justend29)

Much improved devcontainer with latest gcc and clang support (Thanks @Jason5480)
Support for map writing with boolean keys (Thanks @huangminghuang)