Update stable channel to v1.32.4 (#12231)

Signed-off-by: Rafael Breno <32229014+rafaelbreno@users.noreply.github.com>

Author: rafaelbreno

channel.yaml

@@ -1,7 +1,7 @@
 # Example channels config
 channels:
 - name: stable
-  latest: v1.32.3+k3s1
+  latest: v1.32.4+k3s1
 - name: latest
   latestRegexp: .*
   excludeRegexp: (^[^+]+-|v1\.25\.5\+k3s1|v1\.26\.0\+k3s1)