CI: Use ansible-lint<6

By default GH action provider uses <5 which fails on rich.
Rework to not use GH action provider which builds a Docker image
during runtime, pip install approach is faster.

Author: mnasiadka

.ansible-lint

@@ -0,0 +1,3 @@
+---
+skip_list:
+  - no-changed-when

.github/workflows/ansible.yml

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+
+name: Tests
+
+# Controls when the action will run.
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      # Checks-out the repository under $GITHUB_WORKSPACE, so it's accessible to the job
+      - uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r test-requirements.txt
+
+      - name: Linting code
+        run: |
+          ansible-lint -v --force-color

.github/workflows/main.yml

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+ansible>=2.9
+ansible-lint<6