Bump timeout for DataStreamToBigQueryIT and Ignore newly added test

[Abacn]

Mitigate #2459

See #4039 (comment) currently tests are very flaky

[gemini-code-assist]

Summary of Changes

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This pull request addresses ongoing flakiness in the DataStreamToBigQuery integration tests. By extending the global timeout and temporarily disabling a problematic test case, the changes aim to stabilize the CI pipeline while the underlying issues are investigated.

Highlights

• Timeout Adjustment: Increased the test timeout from 40 to 60 minutes in DataStreamToBigQueryIT to accommodate slow test execution.
• Test Suppression: Added @ignore to the testDataStreamPostgresToBigQuery test case to mitigate flakiness issues tracked in issue [Bug]: Improve the Datastream IT time #2459.

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[gemini-code-assist]

Code Review

This pull request increases the integration test timeout from 40 to 60 minutes, links a GitHub issue to the TODO comment, and ignores the Postgres-to-BigQuery integration test. The reviewer suggested reducing the timeout from 60 minutes to 35 minutes, noting that a 60-minute timeout is excessively high and could block the CI pipeline for too long if a test hangs, especially since the maximum pipeline wait time is 25 minutes.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 55.90%. Comparing base (9f81d23) to head (1c721cf).

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #4180   +/-   ##
=========================================
  Coverage     55.90%   55.90%           
- Complexity     7475     7477    +2     
=========================================
  Files          1134     1134           
  Lines         70135    70135           
  Branches       8014     8014           
=========================================
+ Hits          39207    39211    +4     
+ Misses        28381    28377    -4     
  Partials       2547     2547           

Components	Coverage Δ
spanner-templates	84.64% <ø> (-0.01%)	⬇️
spanner-import-export	69.02% <ø> (+0.02%)	⬆️
spanner-live-forward-migration	88.65% <ø> (-0.02%)	⬇️
spanner-live-reverse-replication	81.25% <ø> (-0.02%)	⬇️
spanner-bulk-migration	89.06% <ø> (-0.01%)	⬇️
gcs-spanner-dv	87.85% <ø> (-0.02%)	⬇️
see 3 files with indirect coverage changes

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[Abacn]

A test failing in com.google.cloud.teleport.v2.mongodb.templates.MongoDbToBigQueryIT not related to this change

[Abacn]

R: @yonatandt @noyKonforty

[Abacn]

R: @derrickaw