[20706] Bugfix in DDSBlackboxTestsDataReader test (backport #4720)

[mergify]

Description

This PR forwards a test fix from #4708 regarding the StackAllocatedSequence.

Note, I checked with master and OK, but the reviewer is encouraged to ask manually for a specific ci despite I added the skip-ci. I am leaving the label though for now.

@Mergifyio backport 2.13.x 2.10.x

Contributor Checklist

• Commit messages follow the project guidelines.

• The code follows the style guidelines of this project.

• N/A Tests that thoroughly check the new feature have been added/Regression tests checking the bug and its fix have been added; the added tests pass locally

• N/A Any new/modified methods have been properly documented using Doxygen.

• N/A Any new configuration API has an equivalent XML API (with the corresponding XSD extension)

• Changes are ABI compatible.

• Changes are API compatible.

• N/A New feature has been added to the versions.md file (if applicable).

• N/A New feature has been documented/Current behavior is correctly described in the documentation.

• Applicable backports have been included in the description.

Reviewer Checklist

• The PR has a milestone assigned.
• The title and description correctly express the PR's purpose.
• Check contributor checklist is correct.
• N/A Check CI results: changes do not issue any warning.
• N/A Check CI results: failing tests are unrelated with the changes.
  • Affected test was run locally in Windows and Ubuntu.

---

This is an automatic backport of pull request #4720 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 48aa538 has failed:

On branch mergify/bp/2.13.x/pr-4720
Your branch is up to date with 'origin/2.13.x'.

You are currently cherry-picking commit 48aa53887.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   test/blackbox/common/DDSBlackboxTestsDataReader.cpp

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[MiguelCompany]

@Mario-DL I think we should close this, and include it as part of #4706

[Mario-DL]

Of course, thought I was already merged.
Closing