Enable prism by default (where supported)

[damccorm]

Changes the default Python runner to be prism (when prism is supported). Excludes it from interactive environments for now.

TODO: Wait for next release cut so this has time to bake. Then add entry to CHANGES.md before submitting. Make sure that issues exist for all unsupported features

TODO - https://lists.apache.org/thread/rrpdj3b32cz8qhr23x82q9fbg0rn8crr

Part of https://github.com/apache/beam/issues/34549

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[damccorm]

Looks like https://github.com/apache/beam/blob/0c92ee9343dfeadc1d2f3ac3d51362000464cda5/sdks/python/apache_beam/transforms/ptransform.py#L579 is the source of a lot of the test failures and that we're not handling applying transforms to non-PCollections in a portable-friendly way. This currently keys off of the process id and pipeline id (not-pickle safe), which is probably causing some problems - https://github.com/apache/beam/blob/0c92ee9343dfeadc1d2f3ac3d51362000464cda5/sdks/python/apache_beam/transforms/ptransform.py#L152

EDIT: I think that this is actually a function of pipelines double executing before https://github.com/apache/beam/pull/34921 was patched. So I think this is fine and my temporary patch can be removed

[damccorm]

Most remaining flakes should be fixed by https://github.com/apache/beam/pull/35337 with the next release, pausing work until then

[damccorm]

Current persistent (or possibly persistent) test failures:

beam_PreCommit_Python_ML and Python Unit Tests:

• apache_beam.ml.ts.util_test.PeriodicStreamTest - a few failures, but this is a bad test. See https://github.com/apache/beam/pull/35300#issuecomment-2997517699 - if needed can fix here, but I'd rather we make some changes upstream

beam_PreCommit_Python:

• apache_beam/io/textio_test.py::TextSinkTest::test_write_pipeline_footer - not sure what the issue is yet

beam_PreCommit_Python_Transforms:

• apache_beam/transforms/userstate_test.py::StatefulDoFnOnDirectRunnerTest::test_stateful_set_state_clean_portably

Linting/formatting - I'll deal with this later

There are also some other flakes, which may or may not be related to this change

[damccorm]

R: @shunping

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[damccorm]

There were failing postcommit tests, but not on prism, so I'm not going to block merging

[Abacn]

There are tests failing after this PR, could it be related?

https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Xlang_Gcp_Direct.yml?query=event%3Aschedule

https://github.com/apache/beam/actions/workflows/beam_PostCommit_Yaml_Xlang_Direct.yml?query=event%3Aschedule

[damccorm]

There are tests failing after this PR, could it be related?

https://github.com/apache/beam/actions/workflows/beam_PostCommit_Python_Xlang_Gcp_Direct.yml?query=event%3Aschedule

https://github.com/apache/beam/actions/workflows/beam_PostCommit_Yaml_Xlang_Direct.yml?query=event%3Aschedule

I think it likely is - https://github.com/apache/beam/pull/35608 tested these workflows with extended timeouts and they still failed. Temporarily reverting the core of this change here - https://github.com/apache/beam/pull/35610