ci: fix tox calls

Author: clintonsteiner

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
         cache-dependency-glob: |
           **/setup.py
           **/requirements*.txt
-    - run: uv pip install --upgrade setuptools pip tox virtualenv
+    - run: uv tool install tox --with tox-uv
     # Run tox only for the installed py version on the runner as outlined in the python matrix
     # Ensures the correct py version is installed and tested as opposed to 'tox' which attempts to run for all py versions in tox.ini
     - run: uv run tox -e py

.github/workflows/pypi.yml

@@ -25,7 +25,7 @@ jobs:
         cache-dependency-glob: |
           **/setup.py
           **/requirements*.txt
-    - run: uv pip install --upgrade setuptools pip tox virtualenv
+    - run: uv tool install tox --with tox-uv
     # Run tox only for the installed py version on the runner as outlined in the python matrix
     # Ensures the correct py version is installed and tested as opposed to 'tox' which attempts to run for all py versions in tox.ini
     - run: uv run tox -e py