I’d be very surprised, the culture (Japanese) which Manga originates from is very much non-Catholic - it’s Shintoist, with some elements of Buddhism, Confucianism and Taoism also.
That, and many of the people who are into Manga in the West are pretty secular and atheist leaning, leads me to conclude that the selection for “Catholic manga” would be slim to none.
“Catholic Manga” would be a subgenre of Manga.
Manga is a subgenre of cartoons and comics. Comics and cartoons are a subgenre of literature and video entertainment.
So trying to find a very specialized subgenre, of something which is a subgenre of a thing which is a subgenre is going to be exceedingly rare.