build(deps): bump virtualenv from 20.24.5 to 20.26.6 in /tests (#592)

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.24.5 to 20.26.6.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.24.5...20.26.6)

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

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

Author: dependabot[bot]

tests/requirements.txt

@@ -25,22 +25,22 @@ platformdirs==3.11.0
 pluggy==1.3.0
     # via pytest
 pre-commit==3.4.0
-    # via -r tests/requirements.in
+    # via -r requirements.in
 pytest==7.4.2
     # via
-    #   -r tests/requirements.in
+    #   -r requirements.in
     #   pytest-asyncio
     #   pytest-cov
     #   pytest-mock
 pytest-asyncio==0.21.1
-    # via -r tests/requirements.in
+    # via -r requirements.in
 pytest-cov==4.1.0
-    # via -r tests/requirements.in
+    # via -r requirements.in
 pytest-mock==3.11.1
-    # via -r tests/requirements.in
+    # via -r requirements.in
 pyyaml==6.0.1
     # via pre-commit
-virtualenv==20.24.5
+virtualenv==20.26.6
     # via pre-commit
 
 # The following packages are considered to be unsafe in a requirements file: