[tclap] update to 1.4.0 rc2

[miyanyan]

• Changes comply with the maintainer guide.
• SHA512s are updated for each updated download.
• The "supports" clause reflects platforms that may be fixed by this new version, or no changes were necessary.
• Any fixed CI baseline and CI feature baseline entries are removed from that file, or no entries needed to be changed.
• All patch files in the port are applied and succeed.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Exactly one version is added in each modified versions file.

tclap 1.4.0 rc2 exports cmake targets now , this will solve the tclap problems in #49552

[miyanyan]

currently ecal only support tclap 1.2.5 eclipse-ecal/ecal#2487