Change base image to Rocky Linux

Dockerfile

@@ -2,7 +2,7 @@
 #  Building assumes midpoint-dist.tar.gz is present in the current directory.
 #
 
-FROM tier/shibboleth_sp:3.3.0_12022021
+FROM i2incommon/shibboleth_sp:3.4.1_06122023_rocky8_multiarch
 
 MAINTAINER info@evolveum.com
 
@@ -11,9 +11,9 @@ RUN curl -L -o /etc/yum.repos.d/corretto.repo https://yum.corretto.aws/corretto.
 RUN yum -y update
 RUN yum -y install \
         java-17-amazon-corretto-devel \
-        cron \
+        cronie \
         supervisor \
-	libcurl \
+	libcurl-minimal \
 	&& yum clean -y all
 
 RUN cd /etc/httpd/conf.d/ \