Bump virtualenv from 20.26.6 to 20.31.2

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.26.6 to 20.31.2.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.26.6...20.31.2)

---
updated-dependencies:
- dependency-name: virtualenv
  dependency-version: 20.31.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -374,6 +374,6 @@ typer==0.15.4 ; python_version >= "3.9" and python_version < "4.0" \
 typing-extensions==4.9.0 ; python_version >= "3.9" and python_version < "4.0" \
     --hash=sha256:23478f88c37f27d76ac8aee6c905017a143b0b1b886c3c9f66bc2fd94f9f5783 \
     --hash=sha256:af72aea155e91adfc61c3ae9e0e342dbc0cba726d6cba4b6c72c1f34e47291cd
-virtualenv==20.26.6 ; python_version >= "3.9" and python_version < "4.0" \
-    --hash=sha256:280aede09a2a5c317e409a00102e7077c6432c5a38f0ef938e643805a7ad2c48 \
-    --hash=sha256:7345cc5b25405607a624d8418154577459c3e0277f5466dd79c49d5e492995f2
+virtualenv==20.31.2 ; python_version >= "3.9" and python_version < "4.0" \
+    --hash=sha256:36efd0d9650ee985f0cad72065001e66d49a6f24eb44d98980f630686243cf11 \
+    --hash=sha256:e10c0a9d02835e592521be48b332b6caee6887f332c111aa79a09b9e79efc2af