To populate your local yum repository you could use something like this...
Note how you can filter to show only files suitable for a specified point release by changing the URL appropriately...

rm index.html

wget http://repo.percona.com/pdps-8.0.28/yum/release/8.0/RPMS/x86_64/

for i in `cat index.html | grep rpm| cut -f2 -d'"' | grep -v debuginfo | grep -v debugsource`

do

        rm -rf $i

        wget http://repo.percona.com/pdps-8.0.28/yum/release/8.0/RPMS/x86_64/$i

done