www/node25: Update to 25.6.1

• Use the following ports instead of the bundled ones
  • devel/googletest
  • devel/libada
  • devel/merve
  • devel/uvwasi
  • graphics/hdr_histogram
  • www/nbytes

Changes: https://github.com/nodejs/node/releases

		https://github.com/nodejs/node/blob/main/doc/changelogs/CHANGELOG_V25.md

Security: CVE-2026-21637