Change the default nodest to ubuntu-noble

Ubuntu Noble has been out for long enough now that we should convert to
using it as our default base test nodeset. We already have jobs relying
on this nodeset so we know that the base playbooks should work on it
negating any need for a base-test first rollout.

Change-Id: Iaa561c0c36d654af0d4897bdfac3c1094de8df5f

zuul.d/jobs.yaml

@@ -58,7 +58,7 @@
       - zuul: zuul/zuul-jobs
     timeout: 1800
     post-timeout: 1800
-    nodeset: ubuntu-jammy
+    nodeset: ubuntu-noble
     secrets: &log_clouds
       - opendev_cloud_ovh_bhs
       - opendev_cloud_ovh_gra
@@ -86,7 +86,7 @@
       - zuul: zuul/zuul-jobs
     timeout: 1800
     post-timeout: 1800
-    nodeset: ubuntu-jammy
+    nodeset: ubuntu-noble
     secrets: *log_clouds
 
 - job:
@@ -113,7 +113,7 @@
     timeout: 1800
     post-timeout: 1800
     allowed-projects: zuul/zuul-jobs
-    nodeset: ubuntu-jammy
+    nodeset: ubuntu-noble
     secrets: *log_clouds
 
 - secret: