japanese/navi2ch: Switch RUN_DEPENDS from p5-2chproxy to proxy2ch

Update GH_TAGNAME from faebfd1 to 7811dba.
Add NO_ARCH=yes.
Add a patch to accommodate the url change.
Update pkg-descr.

Changelog:
https://github.com/naota/navi2ch/compare/faebfd1...7811dba

PR: 291381
Approved by: hrs (maintainer timeout)
Approved by: osa (mentor)