Add build steps for various toc settings.

Add additional test build targets for each toc setting values. This
ensures that at least the documentation builds without errors.

Author: markstory

.github/workflows/ci.yml

@@ -32,3 +32,15 @@ jobs:
     - name: Build Test
       run: |
         cd test && make html SPHINXOPTS='-W'
+
+    - name: Build Test with toc show_parents=hide
+      run: |
+        cd test && make html SPHINXOPTS='-W -D toc_object_entries_show_parents=hide'
+
+    - name: Build Test with toc show_parents=domain
+      run: |
+        cd test && make html SPHINXOPTS='-W -D toc_object_entries_show_parents=domain'
+
+    - name: Build Test with toc show_parents=all
+      run: |
+        cd test && make html SPHINXOPTS='-W -D toc_object_entries_show_parents=all'