USe new tox and update githubworkflows

This patch updates tox to the latest and updates the github workflows
to use tox-gh, which is claimed to work with github parallel tox runs

.github/workflows/master-build.yml

@@ -27,7 +27,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install tox tox-gh-actions
+        pip install tox tox-gh>=1.2
     - name: Test with tox
       run: tox
 

.github/workflows/python.yml

@@ -17,6 +17,6 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install tox tox-gh-actions
+        pip install tox tox-gh>=1.2
     - name: Test with tox
       run: tox

dev-requirements.in

@@ -3,7 +3,7 @@ isort
 mypy
 pep8-naming
 Sphinx
-tox==4.3.5
+tox
 # Twine is used for uploading packages to pypi
 # but it induces an install of cryptography
 # This is sucky for rpi systems.

dev-requirements.txt

@@ -72,7 +72,7 @@ sphinxcontrib-serializinghtml==1.1.5  # via sphinx
 tokenize-rt==5.1.0        # via add-trailing-comma, pyupgrade
 toml==0.10.2              # via autoflake
 tomli==2.0.1              # via black, build, coverage, mypy, pyproject-api, pyproject-hooks, pytest, tox
-tox==4.3.5                # via -r dev-requirements.in
+tox==4.6.3                # via -r dev-requirements.in
 typing-extensions==4.6.3  # via libcst, mypy, typing-inspect
 typing-inspect==0.9.0     # via libcst
 unify==0.5                # via gray