[Enabler] Remove zos_fetch dependency from zos_copy test cases to aid in ZOAU 1.3 migration

[ddimatos]

Ansible module functional test case

test_zos_copy_func.py

Enabler description

Module zos_fetch is used in the identified test case test_zos_copy_func.py that results in several behaviors that this issue will change:

• It will remove the need to run this test suite for every zos_fetch change, which is detected by our dependency finder.
• It will reduce the test case module dependency to ease the current migration and future ones.

See the following is a sample code:

fetch_result = hosts.all.zos_fetch(src=src_lib, dest=tmp_folder.name, is_binary=True)