PyDoc: resolve bpy.types & bpy.ops expanding sub-modules inline

The bpy.types page was unreasonably long (over 17k lines).
Resolve by setting the `maxdepth` for this and the `bpy.ops` page too.

This problem showed up in v3.4 release and may be caused by changes
to Sphinx's default behavior as there doesn't seem to be any change
that would cause this in the generated docs.

doc/python_api/sphinx_doc_gen.py

@@ -2098,6 +2098,8 @@ def write_rst_types_index(basepath):
         fw(title_string("Types (bpy.types)", "="))
         fw(".. module:: bpy.types\n\n")
         fw(".. toctree::\n")
+        # Only show top-level entries (avoids unreasonably large pages).
+        fw("   :maxdepth: 1\n")
         fw("   :glob:\n\n")
         fw("   bpy.types.*\n\n")
 
@@ -2124,6 +2126,8 @@ def write_rst_ops_index(basepath):
         write_example_ref("", fw, "bpy.ops")
         fw(".. toctree::\n")
         fw("   :caption: Submodules\n")
+        # Only show top-level entries (avoids unreasonably large pages).
+        fw("   :maxdepth: 1\n")
         fw("   :glob:\n\n")
         fw("   bpy.ops.*\n\n")
         file.close()