Merge pull request #229 from scipp/dependabot/pip/requirements/scipp-26.1.0

Bump scipp from 25.12.0 to 26.1.0 in /requirements

Author: jl-wynen

requirements/base.txt

@@ -164,7 +164,7 @@ sciline==25.11.1
     # via
     #   -r base.in
     #   essreduce
-scipp==25.12.0
+scipp==26.1.0
     # via
     #   -r base.in
     #   essreduce