[21890] Update commercial support section in project README

[JesusPoderoso]

Description

This PR updates the Fast DDS README's commercial support section

@Mergifyio backport 2.0.x 1.4.x 1.2.x 1.0.x

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

[LuciaEchevarria99]

LGTM