[20411] Improve junit_summary robustness

[EduPonz]

Description

#56 introduced a new action to create summaries from jUnit reports. It also introduced support in the colcon_test action to create jUnit reports from CTest ones for CMake versions where CTest does not have native support for jUnit reporting. For the latter cases, the generated jUnit reports where not complete enough, and the junit_summary.py script was not robust enough to cope with the differences. This PR

• Extends the generated reports to have some missing required properties
• Improves the robustness to the junit_summary.py script so if can generate summaries from the different jUnit reports.

Depends on:

• Bump version to 0.8.0 #57

Contributor Checklist

• Commit messages follow the company guidelines.
• N/A: Changes are API compatible.
• N/A: New features have been added to the versions.md and README.md files (if applicable).

Reviewer Checklist

• The title and description correctly express the PR's purpose.
• The Contributor checklist is correctly filled.

[EduPonz]

Tested in:

• [20318] Fix and refactor Windows Github CI (backport #4356) Fast-DDS#4361 run