ModuleUpdate/Setup: install pkg_resources, check pip, typing and cleanup (#1593)

* ModuleUpdater/setup: install pkg_resources and check for pip

plus minor cleanup in the github actions

* ModuleUpdate/setup: make flake8 happy

* ModuleUpdate/setup: make mypy happier

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ on:
       - '**.py'
 
 jobs:
-  build:
+  flake8:
 
     runs-on: ubuntu-latest
 
@@ -25,7 +25,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip wheel
-        pip install flake8 pytest pytest-subtests
+        pip install flake8
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8
       run: |