Add linting pipes

Also tweaked docker-build naming.

.github/workflows/docker-build.yml

@@ -1,6 +1,8 @@
-name: Build Multi Arch Docker Images
+# yamllint disable rule:line-length
+---
+name: Build Docker Images
 
-on:
+on: # yamllint disable-line rule:truthy
   push:
     branches:
       - master

.github/workflows/lint.yml

@@ -0,0 +1,37 @@
+# yamllint disable rule:line-length
+---
+name: Lint
+
+on: [push, pull_request] # yamllint disable-line rule:truthy
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.9"
+          cache: "pip"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pylint black yamllint
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+
+      - name: Run pylint
+        run: |
+          pylint --output-format=text $(find -type f -name "*.py" ! -path "**/.venv/**" ! -path "**/app/migrations/**") | tee /tmp/pylint.txt
+          echo "pylint score: $(cat /tmp/pylint.txt | grep -oP 'Your code has been rated at \K[0-9]*\.?[0-9]*')"
+
+      - name: Run black
+        run: black --check --diff .
+
+      - name: Lint YAML files
+        run: yamllint .