fix for rhel 9

Author: johnpapad24

util/installation/rhel/common/prerequisites.sh

@@ -48,6 +48,11 @@ sudo subscription-manager repos --enable *codeready*
 
 sudo subscription-manager repos --disable "codeready-builder-for-rhel-*-x86_64-eus*"
 
+if $( cat /etc/os-release | grep -q 'PRETTY_NAME="Red Hat Enterprise Linux 9"' ); then 
+	sudo dnf install \
+https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm
+fi
+
 sudo yum update -y
 
 sudo yum install -y --nogpgcheck --skip-broken epel-release