[15905] Fix dataraces when creating DataWriters (backport #3008)

[mergify]

This is an automatic backport of pull request #3008 done by Mergify.
Cherry-pick of 4391864 has failed:

On branch mergify/bp/2.1.x/pr-3008
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Changes to be committed:
	modified:   src/cpp/fastdds/domain/DomainParticipantImpl.cpp
	modified:   src/cpp/fastdds/domain/DomainParticipantImpl.hpp

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   src/cpp/rtps/flowcontrol/FlowControllerImpl.hpp
	deleted by us:   test/blackbox/common/DDSBlackboxTestsBasic.cpp
	both modified:   test/blackbox/common/RTPSBlackboxTestsBasic.cpp

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

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[MiguelCompany]

closing in favor of #3051