Updated inadyn-mt package for CentOS 8

I have updated my inadyn-mt rpm/srpm package for CentOS 8. It is based on inadyn-mt v02.28.10.

• inadyn-mt-2.28.10-4.el8.x86_64.rpm (RPM)
• inadyn-mt-2.28.10-4.el8.src.rpm (SRPM)

I follow again the steps I described here, but started with the current source rpm inadyn-mt-2.28.10-4.fc31.src.rpm