[ci] Move docs building to github actions. NFC

Author: sbc100

.circleci/config.yml

@@ -433,15 +433,6 @@ commands:
       - upload-test-results
 
 jobs:
-  build-docs:
-    executor: focal
-    steps:
-      - checkout
-      - pip-install
-      - run: tools/maint/update_settings_docs.py --check
-      - run: make -C site text
-      - run: tools/maint/check_emcc_help_text.py
-      - run: make -C site html
   ruff:
     executor: focal
     steps:
@@ -1088,60 +1079,3 @@ jobs:
           title: "crossplatform tests"
           test_targets: "--crossplatform-only"
       - upload-test-results
-
-workflows:
-  build-test:
-    jobs:
-      - ruff
-      - mypy
-      - eslint
-      - build-docs
-      - build-linux
-      - test-sanity:
-          requires:
-            - build-linux
-      - test-posixtest:
-          requires:
-            - build-linux
-      - test-core0:
-          requires:
-            - build-linux
-      - test-core2:
-          requires:
-            - build-linux
-      - test-core3:
-          requires:
-            - build-linux
-      - test-wasm64-4gb:
-          requires:
-            - build-linux
-      - test-wasm2js1:
-          requires:
-            - build-linux
-      - test-other:
-          requires:
-            - build-linux
-      - test-browser-chrome
-      - test-browser-chrome-2gb:
-          requires:
-            - build-linux
-      - test-browser-chrome-wasm64:
-          requires:
-            - build-linux
-      - test-browser-chrome-wasm64-4gb:
-          requires:
-            - build-linux
-      - test-browser-firefox:
-          requires:
-            - build-linux
-      - test-browser-firefox-wasm64
-      - test-sockets-chrome:
-          requires:
-            - build-linux
-      - test-jsc
-      - test-spidermonkey
-      - test-node-compat
-      - test-windows
-      - test-mac-arm64:
-          requires:
-            - build-linux

.github/workflows/ci.yml

@@ -39,8 +39,6 @@ jobs:
           fetch-depth: 0 # We want access to other branches, specifically `main`
       - name: pip install
         run: |
-          which python3
-          python3 --version
           python3 -m pip install -r requirements-dev.txt
       - name: Install emsdk
         run: |
@@ -87,3 +85,20 @@ jobs:
             echo "-- This failure is only a warning and can be ignored"
             exit 1
           fi
+
+  build-docs:
+    name: Build Docs
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
+    - name: pip install
+      run: |
+        python3 -m pip install -r requirements-dev.txt
+    - run: tools/maint/update_settings_docs.py --check
+    - run: make -C site text
+    - run: tools/maint/check_emcc_help_text.py
+    - run: make -C site html
+    - uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1 # v4.5
+      with:
+        name: docs
+        path: site/build/html/