Implemented: Updates demos to render stable as 24.09 and next as trunk (OFBIZ-13230)

As we have no real next for now, we have decided to temporary render it as
trunk as long as a new release branch will be created
diff --git a/demo-backup/ofbizdocker/README.md b/demo-backup/ofbizdocker/README.md
index c528c5c..ff81973 100644
--- a/demo-backup/ofbizdocker/README.md
+++ b/demo-backup/ofbizdocker/README.md
@@ -7,8 +7,7 @@
 * exp2.ofbiz.apache.org
 * exp3.ofbiz.apache.org
 
-These sites may be disabled at any time, but the hostnames will be left configured to enable rapid experimentation with 
-demo sites in the future.
+These sites may be disabled at any time, but the hostnames will be left configured to enable rapid experimentation with demo sites in the future.
 
 Files in this subdirectory of the ofbiz-tools repository reflect files which should be created on the root filesystem of ofbiz-vm1.apache.org with the following additions and/or settings:
 * /etc/cron.d/ofbizdocker
diff --git a/demo-backup/ofbizdocker/home/ofbizdocker/demo-next/docker-compose.yml b/demo-backup/ofbizdocker/home/ofbizdocker/demo-next/docker-compose.yml
index 7cf5651..f7de540 100644
--- a/demo-backup/ofbizdocker/home/ofbizdocker/demo-next/docker-compose.yml
+++ b/demo-backup/ofbizdocker/home/ofbizdocker/demo-next/docker-compose.yml
@@ -14,7 +14,7 @@
       - ofbiz-postgres.env
 
   ofbiz:
-    image: ghcr.io/apache/ofbiz:release24.09-plugins-snapshot
+    image: ghcr.io/apache/ofbiz:trunk-plugins-snapshot
     mem_limit: 2400M
     memswap_limit: 2400M
     cpu_shares: 200
diff --git a/demo-backup/ofbizdocker/home/ofbizdocker/demo-stable/docker-compose.yml b/demo-backup/ofbizdocker/home/ofbizdocker/demo-stable/docker-compose.yml
index d41593d..533409b 100644
--- a/demo-backup/ofbizdocker/home/ofbizdocker/demo-stable/docker-compose.yml
+++ b/demo-backup/ofbizdocker/home/ofbizdocker/demo-stable/docker-compose.yml
@@ -14,7 +14,7 @@
       - ofbiz-postgres.env
 
   ofbiz:
-    image: ghcr.io/apache/ofbiz:release18.12-plugins-snapshot
+    image: ghcr.io/apache/ofbiz:release24.09-plugins-snapshot
     mem_limit: 2400M
     memswap_limit: 2400M
     cpu_shares: 200