Mute two tests from SmokeTestWatcherWithSecurityClientYamlTestSuiteIT.

These tests are both in the file `watcher/stats/10_basic`, and have been
failing fairly frequently over the last month with a start-up issue.

The issue is being tracked in #30298.

x-pack/plugin/src/test/resources/rest-api-spec/test/watcher/stats/10_basic.yml

@@ -1,13 +1,17 @@
 ---
 "Test watcher stats output":
-
+  - skip:
+      version: "all"
+      reason: "@AwaitsFix: https://github.com/elastic/elasticsearch/issues/30298"
   - do: {xpack.watcher.stats: {}}
   - match: { "manually_stopped": false }
   - match: { "stats.0.watcher_state": "started" }
 
 ---
 "Test watcher stats supports emit_stacktraces parameter":
-
+  - skip:
+      version: "all"
+      reason: "@AwaitsFix: https://github.com/elastic/elasticsearch/issues/30298"
   - do:
       xpack.watcher.stats:
         metric: "all"