[DO NOT MERGE] Run all PostCommit and PreCommit Tests against Release Branch

[Amar3tto]

Tests run on GHA should be queued shortly.

[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 appears to be a test or setup for running PostCommit and PreCommit tests against a release branch. It introduces a new file, release/trigger_all_tests.json, which seems intended to trigger these test runs within the GitHub Actions workflow.

Highlights

• Test Trigger File Added: A new file, release/trigger_all_tests.json, has been added to the release/ directory. This file currently contains an empty JSON object ({}), suggesting it serves as a placeholder or a trigger for automated test workflows, as indicated by the PR title.

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[github-actions]

Test Results

15 tests  +14   15 ✅ +14   1h 54m 13s ⏱️ + 1h 30m 12s
12 suites +11    0 💤 ± 0 
12 files   +11    0 ❌ ± 0 

Results for commit 13619c7. ± Comparison against base commit 97d40ee.

[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

[tvalentyn]

Seeing an error in one of Python Postcommits:

E   RuntimeError: Failed to import transformers.models.auto.modeling_auto because of the following error (look up to see its traceback):
E   Failed to import transformers.generation.utils because of the following error (look up to see its traceback):
E   module 'torch' has no attribute 'uint64'

https://github.com/apache/beam/actions/runs/16783094643/job/47608696906?pr=35795

Have we investigated this? cc'ing a few folks who might know:

@Amar3tto @shunping @damccorm

[tvalentyn]

Also seeing dockerInDockerIntegrationTest failing in https://github.com/apache/beam/actions/runs/16783094582/job/47608728125?pr=35795 , although:

1. logs are a bit hard to find
2. this seems to be a new test: workflows+gradle: capture and run ML tests that require non self-hosted environment on ubuntu-latest #35585

cc: @mohamedawnallah