Merge pull request #196 from scipp/dependabot/pip/requirements/scipp-25.8.0

Bump scipp from 25.5.1 to 25.8.0 in /requirements

Author: jl-wynen

requirements/base.txt

@@ -138,7 +138,7 @@ sciline==25.5.2
     # via
     #   -r base.in
     #   essreduce
-scipp==25.5.1
+scipp==25.8.0
     # via
     #   -r base.in
     #   essreduce