[6.13.z] Fix ACS tests/fixures by avoiding zst repos

[vsedmik]

Problem Statement

Since this BZ hasn't been backported to 6.13.z yet but the pulp fixtures (used in ACSes but also elsewhere) are using the zst compression now, repo sync of that repos fail in setup.

Solution

Use old non-zst compressed repos instead.

[vsedmik]

trigger: test-robottelo
pytest: tests/foreman/api/test_acs.py tests/foreman/cli/test_acs.py

[Satellite-QE]

PRT Result

Build Number: 5699
Build Status: SUCCESS
PRT Comment: pytest tests/foreman/api/test_acs.py tests/foreman/cli/test_acs.py
Test Result : =========== 18 passed, 2 skipped, 118 warnings in 983.66s (0:16:23) ============

[vsedmik]

Closing in favour of #13387 since the BZ has been backported to 6.13.7