net-p2p/tremotesf: update to 2.6.2

[uzsolt]

Summary

Add compiler:c++20-lang to USES.

Changelog: https://github.com/equeim/tremotesf2/releases/tag/2.6.2

PR: 278274
Approved by: bofh (mentor) OR diizzy (mentor)
(Differential Revision: https://reviews.freebsd.org/D###)

Test Plan

Portlint, portfmt passed. Portclippy doesn't handle correctly the
.if conditionals in Makefile (see https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=278591).

Poudriere testport passed on 13.2, 13.3, 14.0 (amd64).

I don't forget git commit --author.

[diizzy]

Do we still need to use the bundled version of HTTPLIB? https://github.com/equeim/tremotesf2/tree/2.6.2/src/3rdparty matches what we already have in ports, https://www.freshports.org/www/cpp-httplib/
Can we also use upstream's release archives? https://docs.freebsd.org/en/books/porters-handbook/book/#makefile-master_sites-github

LGTM otherwise

[vsasjason_gmail.com]

In D44981#1025501, @diizzy wrote:

Do we still need to use the bundled version of HTTPLIB? https://github.com/equeim/tremotesf2/tree/2.6.2/src/3rdparty matches what we already have in ports, https://www.freshports.org/www/cpp-httplib/

Unfortunately, yes, we still need it. httplib 0.15 and above is broken on FreeBSD 13 due to old OpenSSL 1.

Can we also use upstream's release archives? https://docs.freebsd.org/en/books/porters-handbook/book/#makefile-master_sites-github

I'd be happy to switch as soon as D37929 will land port tree (or after it will be marked as Abandoned without alternative implementation).

[diizzy]

D37929 will probably not be merged, just use MASTER_SITES instead but it's fine as is for now.