According to the CRAN page, < https://CRAN.R-project.org/package=ccgarch>, you can access archived versions (though, note, this was as of 2019, which means it hasn't been maintained over the past couple of years):
Package ‘ccgarch’ was removed from the CRAN repository.
Formerly available versions can be obtained from the archive.
Archived on 2019-03-05 at the request of the maintainer.
There's a read-only mirror of the last-archived version via GitHub, too:
I don't know much about this site, but there are also links to ports of it here:
https://repology.org/project/r:ccgarch/packages