Also set lower case 'powertools' in make-rpm-packages-sh

.circleci/make-rpm-packages.sh

@@ -18,7 +18,7 @@ yum install -y epel-release
 if [ "$PARAM_DIST" = centos ]; then
   if [ "$PARAM_RELEASE" = 8 ]; then
       dnf install -y 'dnf-command(config-manager)'
-      yum config-manager --set-enabled PowerTools
+      yum config-manager --set-enabled powertools
   fi
 fi