[abcotvs] extend _VALID_URL and add support for clips.abcotvs.com(closes #9551)

youtube_dl/extractor/extractors.py

@@ -5,11 +5,14 @@ from .abc import (
     ABCIE,
     ABCIViewIE,
 )
-from .abc7news import Abc7NewsIE
 from .abcnews import (
     AbcNewsIE,
     AbcNewsVideoIE,
 )
+from .abcotvs import (
+    ABCOTVSIE,
+    ABCOTVSClipsIE,
+)
 from .academicearth import AcademicEarthCourseIE
 from .acast import (
     ACastIE,