Enable support for gnu-tar archive in libarchive (#9001)
Enable support for gnu-tar archive in libarchive (#9001)

archive_read_support_format_gnutar isn't' called in
archive_read_support_format_all.

Co-authored-by: Julien Voisin <85d099d025d9e75aa56e67c2f64641cdd4f9d106@google.com>
google/oss-fuzz,google/oss-fuzz,google/oss-fuzz,google/oss-fuzz,google/oss-fuzz,google/oss-fuzz,google/oss-fuzz,google/oss-fuzz,google/oss-fuzz,google/oss-fuzz,google/oss-fuzz