connectors-ci: PyYaml 0.5.4 is incompatible with Cython 3 -> broken connector build

[alafanechere]

Cython 3 was just released, an PyYaml 5.4.0 depends on Cython but is incompatible with Cython 3.
This leads to Python connector build error like: AttributeError: cython_sources on pip install.

PyYaml released a fix for compatibility with Cython 3 but its on a different major version (6) that has dependency conflict with pyarrow

Solutions

A. Upgrade PyYaml to 6 in Airbyte CDK and fix the dependency conflict with PyArrow. Potential regression if some connector make direct use of PyYaml.
B. Patch the connector Dockerfile at build time to install Cython < 3.0 before the other dependencies.

[sryabkov]

Cython 3 was just released, an PyYaml 0.5.4 depends on Cython but is incompatible with Cython 3.

Should be PyYaml 5.4, right?

[mfractal]

any updates on this ?

[bnchrch]

This has been resolved