devel/newt: Update 0.52.24 => 0.52.25, set maintainership

Changelog:
https://pagure.io/newt/blob/master/f/CHANGES

Improve port:

• Replace PORTVERSION with DISTVERSION
• Replace CPPFLAGS and LDFLAGS with USES=localbase:ldflags
• Remove GNU_CONFIGURE_MANPREFIX
• Remove MAKE_JOBS_UNSAFE
• Fix {NLS,PYTHON}_USES - gettext-runtime
• Fix TCL option with tcl86 (workaround)
• Fix warnings from portclippy
• Set MAINTAINER to Atanu Biswas <atanubiswas484@gmail.com>

PR: 286432
Co-authored-by: Atanu Biswas <atanubiswas484@gmail.com>
MFH: 2025Q2