Set Permutation.print_cyclic = True in the homomorphisms doctest
Set Permutation.print_cyclic = True in the homomorphisms doctest

This works around an issue where running the permutations.py doctests first
changes this flag and causes the homomorphisms doctests to fail.

This is just a workaround for a larger issue, which is described in #15198 and

kaushik94/sympy,kaushik94/sympy,kaushik94/sympy