Use the same regex as the Actor class when determining co-authors.

Author: itsluketwist

git/objects/commit.py

@@ -752,11 +752,11 @@ def co_authors(self) -> List[Actor]:
 
         if self.message:
             results = re.findall(
-                r"^Co-authored-by: ((?:\w|\-| ){0,38} <\S*>)$",
+                r"^Co-authored-by: (.*) <(.*?)>$",
                 self.message,
                 re.MULTILINE,
             )
-            for author_string in results:
-                co_authors.append(Actor._from_string(author_string))
+            for author in results:
+                co_authors.append(Actor(*author))
 
         return co_authors

test/test_commit.py

@@ -517,7 +517,7 @@ def test_commit_co_authors(self):
 Co-authored-by: Test User 1 <[email protected]>
 Co-authored-by: test_user_2 <[email protected]>
 Co_authored_by: test_user_x <[email protected]>
-Co-authored-by: test_user_y <poorly formatted email @github.com>
+Co-authored-by: test_user_y <test@github.com> text
 Co-authored-by: test_user_3 <[email protected]>"""
         assert commit.co_authors == [
             Actor("Test User 1", "[email protected]"),