chore: update rockylinux images (#903)

Signed-off-by: Christian Berendt <berendt@osism.tech>

Author: berendt

.github/workflows/update-images.yml

@@ -14,6 +14,7 @@ jobs:
         image:
           - almalinux
           - debian
+          - rockylinux
           - ubuntu
 
     steps: