Fix warning about memory leak in tests [21177] (backport #141)

[mergify[bot]]

Description

Fixes next message:

swig/python detected a memory leak of type 'eprosima::fastrtps::ResourceLimitedVector< unsigned char >::pointer *', no destructor found.

@Mergifyio backport 1.4.x 1.2.x

Contributor Checklist

• [x] Commit messages follow the project guidelines.
• [x] 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
• [x] Changes are API compatible.
• [x] Applicable backports have been included in the description.

Reviewer Checklist

• [x] The PR has a milestone assigned.
• [x] The title and description correctly express the PR's purpose.
• [x] Check contributor checklist is correct.
• [x] Check CI results: changes do not issue any warning.
• [x] Check CI results: failing tests are unrelated with the changes.

  ---

  This is an automatic backport of pull request #141 done by Mergify.

[mergify[bot]]

Cherry-pick of 7cbeb21dc67c416c5afcdc22df00c550b2c2cb92 has failed:

On branch mergify/bp/1.4.x/pr-141
Your branch is up to date with 'origin/1.4.x'.

You are currently cherry-picking commit 7cbeb21.
  (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)

Changes to be committed:
    modified:   fastdds_python/test/api/test_qos.py

Unmerged paths:
  (use "git add <file>..." to mark resolution)
    both modified:   fastdds_python/src/swig/fastdds/dds/core/policy/QosPolicies.i
    both modified:   fastdds_python/src/swig/fastrtps/utils/collections/ResourceLimitedVector.i
    both modified:   fastdds_python/test/api/test_domainparticipant.py

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