Temporarily downgrade Podman on GitHub to fix CI failures for Podman tests

[rm3l]

What type of PR is this:
/kind bug
/area testing
/area infra
/area odo-on-podman

What does this PR do / why we need it:

As reported in #6927, the tests on Podman have been consistently failing since a few days, due to an error: Error: k8s.gcr.io/pause:3.5: image not known
A regression in libpod has been identified in Ubuntu 22.04.1 LTS and reported [1][2]. Though not strictly the same error as the one we observed, I think this regression might affect networking.
As suggested in [3], I'm trying to downgrade Podman to see if it helps. 🤞🏿

[1] actions/runner-images#7753
[2] https://bugs.launchpad.net/ubuntu/+source/libpod/+bug/2024394
[2] actions/runner-images#7753 (comment)

EDIT: the Podman tests are now passing with the changes here. Let's merge this as it is. I'm still keeping an eye out on [1] and will revert the changes here once it is fixed and made available in the runner images.

Which issue(s) this PR fixes:
Fixes #6927

PR acceptance criteria:

• Unit test

• Integration test

• Documentation

How to test changes / Special notes to the reviewer:

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

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[odo-robot]

Kubernetes Docs Tests on commit b38d31f finished with errors.
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[rm3l]

/override Kubernetes-Integration-Tests/Kubernetes-Docs-Integration-Tests

Unrelated.

[openshift-ci]

@rm3l: Overrode contexts on behalf of rm3l: Kubernetes-Integration-Tests/Kubernetes-Docs-Integration-Tests

In response to this:

/override Kubernetes-Integration-Tests/Kubernetes-Docs-Integration-Tests

Unrelated.

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[feloy]

thanks @rm3l for this fix