[WIP] stable-5.x: Temporarily add ignores for ansible-core 2.20

[mariolenz]

SUMMARY

Backport of #2478: Temporarily ignore sanity tests about ansible.module_utils.six imports (ansible/ansible#85651).

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

tests/sanity/ignore-2.20.txt

ADDITIONAL INFORMATION

#2472
#2476

[softwarefactory-project-zuul]

Build failed.
https://ansible.softwarefactory-project.io/zuul/buildset/bec5db68d34442d7aabf0855d880db13

❌ ansible-tox-linters FAILURE in 5m 04s
⚠️ ansible-galaxy-importer CANCELED (non-voting)
⚠️ build-ansible-collection CANCELED

[softwarefactory-project-zuul]

Build failed.
https://ansible.softwarefactory-project.io/zuul/buildset/0b8cd5cff2d44372bd8e120b6ec01223

❌ ansible-tox-linters FAILURE in 4m 50s
⚠️ ansible-galaxy-importer CANCELED (non-voting)
⚠️ build-ansible-collection CANCELED

[softwarefactory-project-zuul]

Build failed.
https://ansible.softwarefactory-project.io/zuul/buildset/addffd61815a46539fc9ab36e84fa09b

❌ ansible-tox-linters FAILURE in 4m 42s
⚠️ ansible-galaxy-importer CANCELED (non-voting)
⚠️ build-ansible-collection CANCELED

[mariolenz]

@ihumster Please ignore this for now. It looks like the ansible-core devel and milestone branches currently disagree about sanity tests :-/