chore: bump virtualenv from 21.6.1 to 21.7.0

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 21.6.1 to 21.7.0.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@21.6.1...21.7.0)

---
updated-dependencies:
- dependency-name: virtualenv
  dependency-version: 21.7.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.dev.in

@@ -7,7 +7,7 @@
 httpretty
 pip-tools
 pre-commit
-virtualenv<21.7
+virtualenv<21.8
 pytest
 pytest-cov
 pytest-env

requirements.dev.txt

@@ -357,9 +357,9 @@ typing-extensions==4.15.0 \
     #   -c requirements.prod.txt
     #   exceptiongroup
     #   virtualenv
-virtualenv==21.6.1 \
-    --hash=sha256:15f978b7cd329f24855ff4a0c4b4899cc7678589f49adbdcbbb4d3232e641128 \
-    --hash=sha256:afe991df855715a2b2f60edfcc0107ef95a79fdfd8cb4cdaa71603d1c12e463b
+virtualenv==21.7.0 \
+    --hash=sha256:7f9519b9432ff11b6e1a3e94061664efc2ff99ea21780e3cf4f6bd0a5da8b37c \
+    --hash=sha256:a8370c1c5530fbabf955e40b8fbbc68a431648b10f9433faa587db30a06e51dd
     # via
     #   -r requirements.dev.in
     #   pre-commit