Bump webob from 1.7.2 to 1.8.8 in /frameworks/Python/morepath (#9215)

Bumps [webob](https://github.com/Pylons/webob) from 1.7.2 to 1.8.8.
- [Changelog](https://github.com/Pylons/webob/blob/main/CHANGES.txt)
- [Commits](https://github.com/Pylons/webob/compare/1.7.2...1.8.8)

---
updated-dependencies:
- dependency-name: webob
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

frameworks/Python/morepath/requirements.txt

@@ -12,6 +12,6 @@ pony==0.7.1
 psycopg2==2.7.5
 reg==0.11
 repoze.lru==0.6
-WebOb==1.7.2
+WebOb==1.8.8
 
 -e .