www/tt-rss: Update to g20251025 new upstream fork

• Update to g20251025 [1]
• Use new upstream fork from previous tt-rss.org committers. [2][3]

[1] https://gitlab.tt-rss.org/tt-rss/tt-rss/-/compare/c67b943aa894b90103c4752ac430958886b996b2...942f3e1bbac865d3c7da948db197067949cbb3e7
[2] https://www.reddit.com/r/selfhosted/comments/1nxu8jc/comment/nhxarjh/
[3] https://github.com/supahgreg/tt-rss/

PR: 290517