feat: upgrade k3s to 1.29.1 and enable the spegel embedded registry (#1284)

* feat: upgrade k3s to 1.29.1 and enable the spegel embedded registry

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix(k3s): add the mirrors for spegel

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: ordering

Signed-off-by: Devin Buhl <devin@buhl.casa>

---------

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/kubernetes/apps/system-upgrade/k3s/ks.yaml.j2

@@ -23,4 +23,4 @@ spec:
   postBuild:
     substitute:
       # renovate: datasource=github-releases depName=k3s-io/k3s
-      KUBE_VERSION: v1.29.0+k3s1
+      KUBE_VERSION: v1.29.1+k3s1