Put back the number of expected references to 6 from the test repo
Put back the number of expected references to 6 from the test repo

This was but down to 5 when GitHub made a change to their server which
made them stop honouring the include-tag request.

This has recently been corrected, so we can bring it back up to six.

jflesch/libgit2-mariadb,jflesch/libgit2-mariadb,jflesch/libgit2-mariadb,jflesch/libgit2-mariadb,jflesch/libgit2-mariadb,jflesch/libgit2-mariadb