Increase timeout for FrozenExistenceDeciderIT#testZeroToOne (#92988)

We increased the timeout from 10s to 30s in #90108 it was not enough,
There were 5 failures over the 8100 latest builds.

Author: arteam

x-pack/plugin/autoscaling/src/internalClusterTest/java/org/elasticsearch/xpack/autoscaling/existence/FrozenExistenceDeciderIT.java

@@ -131,7 +131,7 @@ public void testZeroToOne() throws Exception {
             String[] indices = indices();
             assertThat(indices, arrayContaining(PARTIAL_INDEX_NAME));
             assertThat(indices, not(arrayContaining(INDEX_NAME)));
-        }, 30, TimeUnit.SECONDS);
+        }, 60, TimeUnit.SECONDS);
         ensureGreen();
     }