deps: fix yaml version after cython 3

[CalvoM]

Why is this needed?

tox -e py310-test fails since cython upgraded version to 3.
It affects pyyaml 5.4.1. Downgrading to 5.3.1 helped.

Test Steps

tox -e py310-test

Checklist

• I have updated or added any unit tests accordingly
• I have updated or added any integration tests accordingly
• Changes here need to be documented, and this was done in:

Does this PR require extra reviews?

• Yes
• No

[github-actions]

Jira: This PR is not related to a Jira item. (The PR title does not include a SC-#### reference)

GitHub Issues: No GitHub issues are fixed by this PR. (No commits have Fixes: #### references)

Launchpad Bugs: No Launchpad bugs are fixed by this PR. (No commits have LP: #### references)

Documentation: The changes in this PR do not require documentation changes.

👍 this comment to confirm that this is correct.

[renanrodrigo]

I could not reproduce this error, but maybe the reason is that I am running Jammy, and the packaged version of pyyaml does not carry the same problem. (And pip does not try to install it again if it is installed in the system I guess)

Besides that, we cannot change this dependency because our py310 tests are targetting Jammy, and 5.3.1 is not available on Jammy.

[CalvoM]

@renanrodrigo I agree, I meant to remove this PR for your second reason.