ci(docs): add GitHub Pages deploy workflow for mkdocs

Author: lesnik512

.github/workflows/docs.yml

@@ -0,0 +1,28 @@
+name: Deploy Docs
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "docs/**"
+      - "mkdocs.yml"
+      - ".github/workflows/docs.yml"
+  workflow_dispatch:
+
+concurrency:
+  group: docs-deploy
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: extractions/setup-just@v2
+      - uses: astral-sh/setup-uv@v3
+      - run: just docs-deploy