fix: remove icon_url from url_source block element

Author: zimeg

slack_sdk/models/blocks/block_elements.py

@@ -1668,7 +1668,6 @@ def attributes(self) -> Set[str]:  # type: ignore[override]
             {
                 "url",
                 "text",
-                "icon_url",
             }
         )
 
@@ -1677,7 +1676,6 @@ def __init__(
         *,
         url: str,
         text: str,
-        icon_url: Optional[str] = None,
         **others: Dict,
     ):
         """
@@ -1687,13 +1685,11 @@ def __init__(
         Args:
             url (required): The URL type source.
             text (required): Display text for the URL.
-            icon_url: Optional icon URL to display with the source.
         """
         super().__init__(type=self.type)
         show_unknown_key_warning(self, others)
         self.url = url
         self.text = text
-        self.icon_url = icon_url
 
 
 # -------------------------------------------------

tests/slack_sdk/models/test_chunks.py

@@ -66,7 +66,6 @@ def test_json(self):
                     UrlSourceElement(
                         text="The Free Encyclopedia",
                         url="https://wikipedia.org",
-                        icon_url="https://example.com/globe.png",
                     ),
                 ],
             ).to_dict(),
@@ -86,7 +85,6 @@ def test_json(self):
                         "type": "url",
                         "text": "The Free Encyclopedia",
                         "url": "https://wikipedia.org",
-                        "icon_url": "https://example.com/globe.png",
                     },
                 ],
             },