Update Almalinxu image to 9.6

Change-Id: I41cfe45c2f4e2eb629e6460b578e1b1ff0e0c9ca

almalinux/9/Dockerfile

diff --git a/almalinux/9/Dockerfile b/almalinux/9/Dockerfile
index 6e772d9..e6ed2a7 100644
--- a/almalinux/9/Dockerfile
+++ b/almalinux/9/Dockerfile
@@ -1,4 +1,4 @@
-FROM almalinux:9.5
+FROM almalinux:9.6
 LABEL org.opencontainers.image.authors="luca.milanesio@gmail.com"
 
 # Add Gerrit packages repository and the newest GPG key