gvsbuild: baixar versions anteriors

Changes
- Switch CI to Python 3.15 @danyeaw (#1867)
- Update PyGObject, expat, pycairo, and other dependencies @danyeaw (#1865)
- GStreamer 1.28.8 @danyeaw (#1868)
- GTK 4.24.1 and other dependency updates @danyeaw (#1860)
- Add mpg123 and enable the mpg123 plugin in gst-plugins-good @JumpLink (#1849)
- Update OpenSSL to version 3.6.5 @kathoum (#1852)
- Fix validation error code for tests and drop Python 3.10 support @danyeaw (#1853)
- Weekly dependency update including GStreamer 1.28.7 and expat 2.8.4 @danyeaw (#1842)
- Update Pango and libadwaita @danyeaw (#1839)
- Update libffi to version 3.8.0 @danyeaw (#1840)
- Update HarfBuzz, fontconfig, and gdk-pixbuf @danyeaw (#1826)
- Update pycairo, Go, libpsl, gst-plugin-gtk4, and GStreamer @danyeaw (#1838)
- Update expat to 2.8.3 @danyeaw (#1837)
- openssl: Specify that the version must be FIPS validated @AlessandroBono (#1834)
- Update OpenSSL to 3.6.3, Downgrade FIPS version to 3.1.2 @fabiosky (#1833)
- Enchant 2.8.19 upstream @deepend-tildeclub (#1821)
- fix building librsvg @zhw2101024 (#1803)
Thanks again to @AlessandroBono, @danyeaw, @deepend-tildeclub, @fabiosky, @JumpLink, @kathoum, @zhw2101024, and Dario Marino Saccavino! 🎉

Changes
- Skip clone if archive exists @saste (#1818)
- Update libpsl to 0.23.1 and patch date @danyeaw (#1815)
- GLib 2.88.3, GStreamer 1.28.5, and other updates @danyeaw (#1814)
- Use glob pattern for x264 PDB file installation @AlessandroBono (#1808)
- Update go hash for 1.26.4 @VedaviBalaji (#1811)
- Bump wing from 0.3.24 to 0.3.26 @VedaviBalaji (#1809)
- fix building expat @zhw2101024 (#1799)
- Use glob patterns for FFmpeg PDB file installation @AlessandroBono (#1804)
- Include project version in the tarball @AlessandroBono (#1795)
- Fetch only @Ytsejam76 (#1792)
- Handle None value for skip in make_graph @hwf1324 (#1785)
Thanks again to @AlessandroBono, @danyeaw, @hwf1324, @saste, @VedaviBalaji, @Ytsejam76, @zhw2101024, Stefano Sabatini and Vedavi Balaji! 🎉