use tox to check mypy and dbt versions instead of make

.github/workflows/main.yml

@@ -60,10 +60,8 @@ jobs:
         run: |
           python -m pip install --user --upgrade pip
           python -m pip --version
-          make dev
-          make dev_req
-          mypy --version
-          dbt --version
+          python -m pip install tox
+          tox -e version_checks
 
       - name: Run pre-commit hooks
         run: pre-commit run --all-files --show-diff-on-failure

tox.ini

@@ -35,3 +35,17 @@ commands =
 deps =
   -rdev-requirements.txt
   -reditable-requirements.txt
+
+
+[testenv:{version_checks,py38,py39,py310,py311,py}]
+description = check dbt version
+download = true
+skip_install = true
+passenv =
+  DBT_*
+commands =
+  dbt --version
+  mypy --version
+deps =
+  -rdev-requirements.txt
+  -reditable-requirements.txt