www/freenginx-devel: update: 1.31.2 -> 1.31.3

Build of the substitutions filter third-party module is temporarily disabled.

Sponsored by: tipi.work

<ChangeLog>

*) Feature: additional checks are now used during variable substitution,

including during execution of the ngx_http_rewrite_module directives,
to prevent buffer overruns in case of errors in the code.

*) Bugfix: if the "auth_request_set" directive or regular expression

named captures were used to change prefix variables, such as
"$http_...", corresponding variables became empty in other parts of
the configuration.

*) Bugfix: changing the $limit_rate and $args variables with the

"auth_request_set" directive or regular expression named captures
worked incorrectly.

*) Bugfix: in error handling in the mail proxy module.

Thanks to Evan Hellman, Trail of Bits.

*) Bugfix: in error handling when using gzipping.

Thanks to Evan Hellman, Trail of Bits.

*) Bugfix: in HTTP/3.

*) Bugfix: a segmentation fault might occur in a worker process when

sending very long request header lines to a gRPC backend.
Thanks to Evan Hellman, Trail of Bits.

*) Bugfix: a segmentation fault might occur in a worker process if the

ngx_http_charset_module was used to convert responses from UTF-8.

*) Bugfix: in the ngx_http_perl_module.

Thanks to Evan Hellman, Trail of Bits and Axel Mierczuk, Keith
Hoodlet, 1Password's Off-by-1 Labs.

*) Bugfix: in error handling when using the proxy_no_cache directive.

Thanks to Valentin Bartenev.

</ChangeLog>