[16038] Fix SegFault in delete_contained_entities() when compiled with statistics

[Mario-DL]

Description

If compiled with statistics, when a participant calls delete_contained_entities() followed by a call to Factory::delete_participant(), a SegFault was produced.

Proposed solution changes:
Making ParticipantImpl delete_contained_entities() virtual so that the statistics participant can set the builtin_publishers to nullptr.

@Mergifyio backport 2.7.x 2.6.x 2.3.x

Contributor Checklist

• Commit messages follow the project guidelines.
• The code follows the style guidelines of this project.
• Tests that thoroughly check the new feature have been added/Regression tests checking the bug and its fix have been added.
• Any new/modified methods have been properly documented using Doxygen.
• Fast DDS test suite has been run locally. amd64
• Changes are ABI compatible.
• Changes are API compatible.
• N/A Documentation builds and tests pass locally.
• 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.

Reviewer Checklist

• Check contributor checklist is correct.
• Check CI results: changes do not issue any warning.
• Check CI results: failing tests are unrelated with the changes.

[jparisu]

NOTE: Notice that this feature is not tested in actual tests due to not compile with STATISTICS.
CI must be updated in order to check it, or add a test where in CMakeLists it is manually specified the option FASTDDS_STATISTICS=ON.

NOTE: Can statistics entities be deleted as normal entities? There is a specific method to delete them eprosima::fastdds::statistics::dds::DomainParticipantImpl::delete_statistics_builtin_entities() and eprosima::fastdds::statistics::dds::DomainParticipantImpl::disable_statistics_datawriter(const std::string &topic_name), maybe is not so trivial to remove them as any other entity.

ADDITION: Check in core/src/fastdds/src/cpp/fastdds/domain/DomainParticipantFactory.cpp (135) eprosima::fastdds::dds::DomainParticipantFactory::delete_participant(eprosima::fastdds::dds::DomainParticipant *part) that statistical entities are being deleted before checking if deletion could be done.

[jparisu]

• Tests that thoroughly check the new feature have been added/Regression tests checking the bug and its fix have been added.

This is not totally correct 🙄

[rsanchez15]

@richiprosima please test this

[jparisu]

LGTM

[rsanchez15]

@richiprosima please test this

[JLBuenoLopez]

LGTM