Solution
S3_EP_NAME="<ENDPOINT_NAME>"
REGION="<REGION>"
S3_ENI=$(aws ec2 describe-vpc-endpoints --region $REGION --filters "Name=service-name,Values=com.amazonaws.$REGION.s3" --query "VpcEndpoints[0].NetworkInterfaceIds" --output text)
S3_ENI_IP=$(aws ec2 describe-network-interfaces --region $REGION --network-interface-ids $S3_ENI --query "NetworkInterfaces[0].PrivateIpAddress" --output text)
sudo cat <<EOF>> /etc/hosts
$S3_ENI_IP al2023-repos-$REGION-de612dc2.s3.dualstack.$REGION.amazonaws.com
EOF
sudo cat <<\\EOF>> /etc/dnf/dnf.conf
sslverify=0
EOF