Add reusable workflow for build_docs

.github/workflows/build_docs.yaml

@@ -1,4 +1,4 @@
-name: docs
+name: Build docs
 
 on:
   push:
@@ -7,47 +7,5 @@ on:
   pull_request:
 
 jobs:
-  build_sphinx_docs:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          # Need to clone everything for the git tags.
-          fetch-depth: 0
-
-      - name: Set up Python
-        uses: actions/setup-python@v3
-        with:
-          python-version: '3.10'
-          cache: "pip"
-          cache-dependency-path: "setup.cfg"
-
-      - name: Install sqlite
-        run: sudo apt-get install sqlite libyaml-dev
-
-      - name: Update pip/wheel infrastructure
-        run: |
-          python -m pip install --upgrade pip
-          pip install wheel
-
-      - name: Install postgresql (server)
-        run: |
-          sudo apt-get update
-          sudo apt-get install postgresql
-
-      - name: Install postgresql Python packages
-        run: pip install psycopg2 testing.postgresql
-
-      - name: Install dependencies
-        run: |
-          pip install -r requirements.txt
-
-      - name: Build and install
-        run: pip install -v .
-
-      - name: Install documenteer
-        run: pip install 'documenteer[pipelines]<0.7'
-
-      - name: Build documentation
-        working-directory: ./doc
-        run: package-docs build
+  call-workflow:
+    uses: lsst/rubin_workflows/.github/workflows/build_docs.yaml@main