build(deps): bump tox from 3.25.1 to 4.5.1 in /requirements

Bumps [tox](https://github.com/tox-dev/tox) from 3.25.1 to 4.5.1.
- [Release notes](https://github.com/tox-dev/tox/releases)
- [Changelog](https://github.com/tox-dev/tox/blob/main/docs/changelog.rst)
- [Commits](tox-dev/tox@3.25.1...4.5.1)

---
updated-dependencies:
- dependency-name: tox
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements/integration.txt

@@ -7,55 +7,58 @@
 #
 build==0.8.0
     # via pip-tools
+cachetools==5.3.0
+    # via tox
 cfgv==3.3.0
     # via pre-commit
+chardet==5.1.0
+    # via tox
 click==8.0.4
     # via
     #   pip-compile-multi
     #   pip-tools
+colorama==0.4.6
+    # via tox
 distlib==0.3.6
     # via virtualenv
-filelock==3.9.0
+filelock==3.12.0
     # via
     #   tox
     #   virtualenv
 identify==2.2.13
     # via pre-commit
 nodeenv==1.6.0
     # via pre-commit
-packaging==21.3
+packaging==23.1
     # via
     #   build
+    #   pyproject-api
     #   tox
 pep517==0.11.0
     # via build
 pip-compile-multi==2.6.2
-    # via -r requirements/integration.in
+    # via -r integration.in
 pip-tools==6.8.0
     # via pip-compile-multi
-platformdirs==2.6.2
-    # via virtualenv
-pluggy==0.13.1
+platformdirs==3.5.0
+    # via
+    #   tox
+    #   virtualenv
+pluggy==1.0.0
     # via tox
 pre-commit==3.3.1
-    # via -r requirements/integration.in
-py==1.10.0
+    # via -r integration.in
+pyproject-api==1.5.1
     # via tox
-pyparsing==3.0.6
-    # via packaging
 pyyaml==5.4.1
     # via pre-commit
-six==1.16.0
-    # via tox
-toml==0.10.2
-    # via tox
 tomli==1.2.1
-    # via build
+    # via pep517
 toposort==1.6
     # via pip-compile-multi
-tox==3.25.1
-    # via -r requirements/integration.in
-virtualenv==20.17.1
+tox==4.5.1
+    # via -r integration.in
+virtualenv==20.23.0
     # via
     #   pre-commit
     #   tox