Cherrypick #37018 to release-2.70

[Amar3tto]

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[gemini-code-assist]

Summary of Changes

Hello @Amar3tto, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request backports a crucial change to the release-2.70 branch, specifically addressing an incompatibility issue where Spanner emulator integration tests would fail when run on the Dataflow runner. By introducing conditional skips for these tests in the Dataflow environment, the PR aims to improve the stability and reliability of the test suite for the release-2.70 branch, ensuring that CI pipelines can pass without encountering these specific failures.

Highlights

• Backport of Skip spannerio tests that depend on emulator on dataflowrunner #37018: This pull request cherry-picks changes from PR Skip spannerio tests that depend on emulator on dataflowrunner #37018 to the release-2.70 branch, ensuring critical fixes or features are available in the stable release.
• Spanner Emulator Test Compatibility: Integration tests for the Spanner emulator in xlang_spannerio_it_test.py and spanner_it_test.py are now conditionally skipped when executed with the DataflowRunner. This addresses known incompatibilities between the Spanner emulator and the Dataflow execution environment, preventing test failures.
• CI Trigger Updates: Trivial modifications were made to the beam_PostCommit_Python_Xlang_Gcp_Dataflow.json and beam_PostCommit_Python_Xlang_Gcp_Direct.json files by incrementing their modification counters. This is typically done to force a re-run of associated CI pipelines.

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[github-actions]

Checks are failing. Will not request review until checks are succeeding. If you'd like to override that behavior, comment assign set of reviewers

[Abacn]

Thanks!