[20517] Force usage of semicolon in FASTDDS_TODO_BEFORE macro

[EduPonz]

Description

Up until this PR, the FASTDDS_TODO_BEFORE macro added a semicolon after its static_assert. This means that when using the macro, if a semicolon is added, a second semicolon ends up on the source after pre-processing, which can result in a compiler warning because of that extra semicolon. This PR:

• Removes the semicolon from the static assert within the FASTDDS_TODO_BEFORE macro so that the use of semicolon upon usage is enforced.
• Updates all the usages to add a semicolon.

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: Changes are ABI compatible.
• N/A: 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.
• N/A: 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.
• Check CI results: changes do not issue any warning.
• Check CI results: failing tests are unrelated with the changes.

[EduPonz]

@richiprosima please test this

[JesusPoderoso]

LGTM