Bump furo from 2025.7.19 to 2025.9.25 (#755)

dependabot[bot] · web-flow · commit c1a2ea209508 · 2025-09-27T20:22:12.000+02:00
diff --git a/doc/requirements.txt b/doc/requirements.txt
@@ -2,7 +2,7 @@ click==8.3.0
 entrypoints==0.4
 Pillow==11.3.0
 Sphinx==8.2.3
-furo==2025.7.19
+furo==2025.9.25
 ipython==9.5.0
 netCDF4==1.7.2
 xarray==2025.9.0
