update workflow module test

.github/workflows/script_module_list.yml

@@ -1,32 +1,34 @@
 # documentation: https://help.github.com/en/articles/workflow-syntax-for-github-actions
 name: Module overview script (lint + test)
-on: [push, pull_request]
-#  push:
-#    paths:
-#      - 'scripts/**'
-#      - './.github/**'
-#  pull_request:
-#    paths:
-#      - 'scripts/**'
-#      - './.github/**'
+on:
+  push:
+    paths:
+      - 'scripts/README.mds/**'
+      - './.github/**'
+  pull_request:
+    paths:
+      - 'scripts/**'
+      - './.github/**'
 
 # Declare default permissions as read only.
 permissions: read-all
 jobs:
 
-#  flake8-lint:
-#    runs-on: ubuntu-20.04
-#    name: Lint
-#    steps:
-#      - name: Check out source repository
-#        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
-#      - name: Set up Python environment
-#        uses: actions/setup-python@13ae5bb136fac2878aff31522b9efb785519f984 # v4.3.0
-#        with:
-#          python-version: "3.6"
-#      - name: Run flake8 to verify PEP8-compliance of Python code
-#        run: |
-#          flake8
+  flake8-lint:
+    runs-on: ubuntu-20.04
+    name: Lint
+    steps:
+      - name: Check out source repository
+        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
+      - name: Set up Python environment
+        uses: actions/setup-python@13ae5bb136fac2878aff31522b9efb785519f984 # v4.3.0
+        with:
+          python-version: "3.6"
+      - name: Run flake8
+        uses: py-actions/flake8@v2
+        with:
+          max-line-length: "120"
+          path: "scripts/available_software"
 
   pytest-tests:
     runs-on: ubuntu-20.04
@@ -35,7 +37,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@13ae5bb136fac2878aff31522b9efb785519f984 # v4.3.0
         with:
-          python-version: '3.10'
+          python-version: '3.6'
       - name: Install dependencies
         run: |
           cd scripts/available_software