Python dependency: Update wtforms requirement in /web/regression

Updates the requirements on [wtforms](https://github.com/pallets-eco/wtforms) to permit the latest version.
- [Release notes](https://github.com/pallets-eco/wtforms/releases)
- [Changelog](https://github.com/pallets-eco/wtforms/blob/main/CHANGES.rst)
- [Commits](pallets-eco/wtforms@3.2.0...3.1.2)

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

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

Author: dependabot[bot]

requirements.txt

@@ -21,7 +21,7 @@ Flask-Babel==4.0.*
 Flask-Security-Too==5.5.*; python_version >= '3.10'
 Flask-Security-Too==5.4.*; python_version <= '3.9'
 Flask-SocketIO==5.5.*
-WTForms==3.2.*; python_version >= '3.10'
+WTForms==3.1.*; python_version >= '3.10'
 WTForms==3.1.*; python_version <= '3.9'
 passlib==1.*
 pytz==2024.*