Bump webob from 1.8.7 to 1.8.8

Bumps [webob](https://github.com/Pylons/webob) from 1.8.7 to 1.8.8.
- [Changelog](https://github.com/Pylons/webob/blob/main/CHANGES.txt)
- [Commits](Pylons/webob@1.8.7...1.8.8)

---
updated-dependencies:
- dependency-name: webob
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -190,7 +190,7 @@ venusian==3.1.0
     # via pyramid
 waitress==2.1.2
     # via devpi-server
-webob==1.8.7
+webob==1.8.8
     # via pyramid
 wheel==0.41.3
     # via -r core-requirements.txt