Handle ValueError ("not enough image data") on Image.open gracefully

nm_iconfinder/nm_iconfinder.py

@@ -42,7 +42,7 @@ def from_url(cls, url: str) -> Optional["Icon"]:
         with BytesIO(res.content) as bio:
             try:
                 img = Image.open(bio)
-            except UnidentifiedImageError:
+            except (UnidentifiedImageError, ValueError):
                 return None
         width, height = img.size
         # Ignore non-square Icons