doc: added doc for encode_skip_unsupported_value_types.

Bugfix: Lua cjson integer overflow issues (CVE-2022-24834) (openresty#94

)

* Fix integer overflows due to using wrong integer size.
* Add assertions / panic when overflow still happens.

Co-authored-by: Oran Agra <oran@redislabs.com>
Co-authored-by: Yossi Gottlieb <yossigo@gmail.com>

bumped version to 2.1.0.12.

add lua 5.4 to test suite

bumped version to 2.1.0.10. (openresty#79)

bumped version to 2.1.0.10. (openresty#79)

bump version to 2.1.0.9

feature: add option to disable forward slash escaping

Thanks @spacewander for optimization and documentation.