update tests

Author: James Boulton

.github/workflows/tests.yml

@@ -18,6 +18,6 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install tox tox-gh-actions
+          pip install 'tox>=4.0' tox-gh-actions
       - name: Test with tox
         run: tox

tox.ini

@@ -20,4 +20,4 @@ commands =
 [testenv:flake8]
 basepython = python3.13
 deps = flake8
-commands = flake8 dashio Examples tests utilities
+commands = flake8 dashio tests utilities