feat: remove annotations for properties in attributes section

Author: elfkuzco

src/mkdocstrings_handlers/python/rendering.py

@@ -539,11 +539,20 @@ def do_as_attributes_section(
     Returns:
         An attributes docstring section.
     """
+    def _parse_docstring_description(attribute: Attribute) -> str:
+        if attribute.docstring is None:
+            return ""
+        lines = attribute.docstring.value.lstrip().split("\n", 1)
+        if ":" in lines[0]:
+            _, line = lines[0].split(":", 1)
+            lines = [line, *lines[1:]]
+        return lines[0]
+
     return DocstringSectionAttributes(
         [
             DocstringAttribute(
                 name=attribute.name,
-                description=attribute.docstring.value.split("\n", 1)[0] if attribute.docstring else "",
+                description=_parse_docstring_description(attribute),
                 annotation=attribute.annotation,
                 value=attribute.value,  # type: ignore[arg-type]
             )