Migrate PubSub removing flaky test

[mcruzdev]

Description

Use testcontainers for PubSub tests.

The main goal is to remove the following flaky test https://github.com/dapr/java-sdk/actions/runs/13773009141/job/38515768267#step:19:13432.

Closes one of the flaky test links related on the #1258 issue.

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #[issue number]

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[mcruzdev]

@artur-ciocanu @cicoyle @salaboy

Trying to move the following test to use Testcontainers I got a problem.

java-sdk/sdk-tests/src/test/java/io/dapr/it/pubsub/http/PubSubIT.java

Lines 571 to 572 in 3a8fd61

	public void testPubSubBulkSubscribe() throws Exception {
	DaprRun daprRun = closeLater(startDaprApp(

When running the test from PubSub the following assert works well:

java-sdk/sdk-tests/src/test/java/io/dapr/it/pubsub/http/PubSubIT.java

Line 612 in 3a8fd61

assertEquals(1, messages.size());

I have 1 message with the first message containing 10 statuses.

But using in-memory (Testcontainers) I have 10 messages and each one with 1 statuses.

I would like to know if the in-memory PubSub supports bulk message? The PubSub from DaprRun uses Redis

[cicoyle]

please add the header to all files

[mcruzdev]

Of course, tomorrow early I will do it

[artur-ciocanu]

@mcruzdev I will try to review ASAP, but could you please check why the ITs are failing?

[mcruzdev]

@mcruzdev I will try to review ASAP, but could you please check why the ITs are failing?

It is another mapped flaky test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.34%. Comparing base (d759c53) to head (b40a5b2).
Report is 165 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1407      +/-   ##
============================================
+ Coverage     76.91%   78.34%   +1.42%     
- Complexity     1592     1847     +255     
============================================
  Files           145      226      +81     
  Lines          4843     5707     +864     
  Branches        562      601      +39     
============================================
+ Hits           3725     4471     +746     
- Misses          821      916      +95     
- Partials        297      320      +23     

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