Switch docs hosting to developmentseed domain

[maxrjones]

Workflow from another project:

name: Publish docs via GitHub Pages

on:
  push:
    branches:
      - main

jobs:
  build:
    name: Deploy docs
    runs-on: ubuntu-latest
    steps:
      - name: Checkout main
        uses: actions/checkout@v6

      - name: Install uv
        uses: astral-sh/setup-uv@v7
        with:
          version: "0.9.*"
          enable-cache: true

      - name: Deploy docs
        run: uv run --group docs mkdocs gh-deploy --force

[kylebarron]

Another option: https://github.com/developmentseed/async-geotiff/blob/main/.github/workflows/deploy-mkdocs.yml

That uses mike for versioning and automatically publishes a new version based on whether the version is a beta or alpha or actual release (beta/alpha releases aren't set to latest)