Security Guidelines are out of dated

See https://codeigniter4.github.io/CodeIgniter4/concepts/security.html

The OWASP Top 10 in the docs is the version in 2013.
https://owasp.org/www-pdf-archive/OWASP_Top_10_-_2013.pdf
https://www.hahwul.com/cullinan/history-of-owasp-top-10/

The latest is OWASP Top 10 2021.
https://owasp.org/www-project-top-ten/
