Modernize Gerrit image to version 3.10.0-almalinux9

As this is version compatible with pull-replication on `stable-3.10`.

Change-Id: Ic0dc29004211c86fa52daaecf4f2d66afeb19321

example-setup/broker/Dockerfile

diff --git a/example-setup/broker/Dockerfile b/example-setup/broker/Dockerfile
index 9ed7944..8419c8e 100644
--- a/example-setup/broker/Dockerfile
+++ b/example-setup/broker/Dockerfile
@@ -1,4 +1,4 @@
-FROM gerritcodereview/gerrit:3.9.0-rc4-almalinux9
+FROM gerritcodereview/gerrit:3.10.0-almalinux9
 
 USER root
 

example-setup/http/Dockerfile

diff --git a/example-setup/http/Dockerfile b/example-setup/http/Dockerfile
index 32a475e..4a824a7 100644
--- a/example-setup/http/Dockerfile
+++ b/example-setup/http/Dockerfile
@@ -1,4 +1,4 @@
-FROM gerritcodereview/gerrit:3.9.0-rc4-almalinux9
+FROM gerritcodereview/gerrit:3.10.0-almalinux9
 
 USER root