Feature/acs 3122 update tomcat to rocky linux8 (#1255)

* update tomcat base image to rockylinux8

* add dockerfile to dependabot

* update packages for rockylinux8

.github/dependabot.yml

@@ -158,3 +158,10 @@ updates:
     - "8.16"
   registries:
   - maven-repository-artifacts-alfresco-com-nexus-content-groups-int
+- package-ecosystem: "docker"
+    directory: "packaging/docker-alfresco/"
+    schedule:
+    interval: "daily"
+    time: "22:00"
+    timezone: "Europe/London"
+    open-pull-requests-limit: 99

packaging/docker-alfresco/Dockerfile

@@ -1,6 +1,6 @@
 # Fetch image based on Tomcat 9.0, Java 11 and Centos 7
 # More infos about this image: https://github.com/Alfresco/alfresco-docker-base-tomcat
-FROM alfresco/alfresco-base-tomcat:tomcat9-jre11-centos7-202203091924
+FROM alfresco/alfresco-base-tomcat:tomcat9-jre11-rockylinux8-202205140719
 
 # Set default docker_context.
 ARG resource_path=target
@@ -65,12 +65,12 @@ RUN sed -i -e "s_log4j.appender.File.File\=alfresco.log_log4j.appender.File.File
 
 # fontconfig is required by Activiti worflow diagram generator
 # installing pinned dependencies as well
-RUN yum install -y fontconfig-2.13.0-4.3.el7 \
-                   dejavu-fonts-common-2.33-6.el7 \
-                   fontpackages-filesystem-1.44-8.el7 \
-                   freetype-2.8-14.el7_9.1 \
-                   libpng-1.5.13-8.el7 \
-                   dejavu-sans-fonts-2.33-6.el7 && \
+RUN yum install -y fontconfig-2.13.1-4.el8 \
+                   dejavu-fonts-common-2.35-7.el8 \
+                   fontpackages-filesystem-1.44-22.el8 \
+                   freetype-2.9.1-4.el8_3.1 \
+                   libpng-1.6.34-5.el8 \
+                   dejavu-sans-fonts-2.35-7.el8 && \
     yum clean all
 
 # The standard configuration is to have all Tomcat files owned by root with group GROUPNAME and whilst owner has read/write privileges,