Add a setup helper script

.github/workflows/ansible.yml

@@ -12,6 +12,6 @@ jobs:
         with:
           python-version: 3.7
       - name: Install dependencies
-        run: pip install -r dev-requirements.txt
+        run: ./scripts/setup.sh
       - name: Run linters
         run: ./scripts/ansible-lint.sh

.github/workflows/lint.yml

@@ -12,6 +12,6 @@ jobs:
         with:
           python-version: 3.7
       - name: Install dependencies
-        run: pip install -r dev-requirements.txt
+        run: ./scripts/setup.sh
       - name: Run linters
         run: ./scripts/lint.sh

scripts/setup.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+set -ex
+
+python -m venv env
+
+env/bin/pip install -r dev-requirements.txt