[23874] Bump version to v4.0.6

[MiguelCompany]

Description

This updates IDL Parser to v4.0.5, and bumps Fast DDS Gen version to v4.0.6.

• Fast DDS: [23874] Regenerate code with Fast DDS Gen v4.0.6 Fast-DDS#6326
• Fast DDS docs: [23874] Regenerate code with Fast DDS Gen v4.0.6. Fast-DDS-docs#1232
• Discovery Server: [23874] Regenerate code with Fast DDS Gen v4.0.6 Discovery-Server#141
• Shapes Demo: [23874] Regenerate code with Fast DDS Gen v4.0.6 ShapesDemo#237
• Fast DDS python: [23874] Regenerate code with Fast DDS Gen v4.0.6 Fast-DDS-python#288

Contributor Checklist

• Commit messages follow the project guidelines.
• 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
• New feature has been documented/Current behavior is correctly described in the documentation.
  • Related documentation PR: [23874] Prepare for release v3.2.4 Fast-DDS-docs#1233
• 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.