Add changelog entry for kube_cache_sync_timeout_seconds change (#32002)

releasenotes/notes/kube-cache-sync-timeout-seconds-default-0bb13defed7ae192.yaml

@@ -0,0 +1,11 @@
+# Each section from every release note are combined when the
+# CHANGELOG.rst is rendered. So the text needs to be worded so that
+# it does not depend on any information only available in another
+# section. This may mean repeating some details, but each section
+# must be readable independently of the other.
+#
+# Each section note must be formatted as reStructuredText.
+---
+other:
+  - |
+    Bumps the default value for `kube_cache_sync_timeout_seconds` from 5 to 10 seconds.