feat: Add OpenLineage support for CloudSQLExecuteQueryOperator

[kacpermuda]

This PR adds OpenLineage support for CloudSQLExecuteQueryOperator. The logic is very similar (almost the same) as in SQLExecuteQueryOperator where we take advantage of DB hooks being instrumented.

Adding OL required changing sql proxy in the operator to a context manager, probably a nit change.

I've run some manual tests and all looks good.

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[kacpermuda]

@ahidalgob @michalmodras As an addition to my manual tests I've done I wanted to run system tests for CloudSQLExecuteQueryOperator, but they seem to fail even on current main (breeze testing system-tests providers/tests/system/google/cloud/cloud_sql/example_cloud_sql_query.py). Also, the system test dashboard provided by Google is not available, so I can't verify if those system tests fails only for me. Would appreciate any help in running those tests

[michalmodras]

@fdemiane is currently working on some fixes in the Google system tests dashboard; @fdemiane can you please help @kacpermuda ?

[mobuchowski]

@kacpermuda should we draft this PR until you verify if it works?

[kacpermuda]

Yeah, we can do that. I've tested it manually but if we can run the system tests as well it would be better.

[fdemiane]

Hello @kacpermuda,
Indeed the Google Providers Dashboard is down for maintenance. The example_cloud_sql_query.py system test was also failing on main since a long time, and I wasn't able to run it either. This needs investigation and most probably changes to the system test code.
In the light of the above, I can recommend sticking to manually testing the operator, or maybe try to manually replicate in some way what the system test is doing for greater coverage

[kacpermuda]

Thanks for the information. I've run some more manual tests, I think I even managed to run a system test with proxy (that was my main concern, if the proxy still works fine). I think it can be merged now, and once the dashboard is live again I'll check again if all works well.

[mobuchowski]

Approved with one question