Bump werkzeug from 3.1.0 to 3.1.5 in /.devcontainer/src/test/regress

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 3.1.0 to 3.1.5.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](pallets/werkzeug@3.1.0...3.1.5)

---
updated-dependencies:
- dependency-name: werkzeug
  dependency-version: 3.1.5
  dependency-type: direct:production
...

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

Author: dependabot[bot]

.devcontainer/src/test/regress/Pipfile

@@ -25,7 +25,7 @@ pytest-timeout = "*"
 pytest-xdist = "*"
 pytest-repeat = "*"
 pyyaml = "*"
-werkzeug = "==3.1.4"
+werkzeug = "==3.1.5"
 "typing-extensions" = ">=4.13.2,<5"
 pyperclip = "==1.9.0"