openlineage: isolate metadata extraction by executing OL methods in separate, forked process

[mobuchowski]

This PR builds on #39890 (already merged).

After this change, OpenLineage will execute metadata extraction in separate, forked process.
It's a technique modeled to what interaction between LocalTaskJobRunner and StandardTaskRunner looks like - a process, in this case process of StandardTaskRunner watches over OpenLineage listener process during metadata extraction.

This adds a layer of isolation between task execution and OpenLineage, adding a level of assurance that OpenLineage execution does not interfere with task execution in a way other than taking time.
Additionally, this allows us to add configurable timeout for OL execute methods.

The reason for that is, beyond configurability, that sometimes metadata extraction code can hang - for example, when dealing with Snowflake connection issue snowflakedb/snowflake-connector-python#1898 - and we want to give as much guarantees that OL will not cause task to fail.

[potiuk]

few nits about splitting the PR

[potiuk]

Ah I missed those are two commits/PRs already :)