[ML] Mute ForecastIT.testOverflowToDisk in EAR builds (#60040)

Due to #58806

x-pack/plugin/ml/qa/native-multi-node-tests/src/test/java/org/elasticsearch/xpack/ml/integration/ForecastIT.java

@@ -213,6 +213,10 @@ public void testMemoryStatus() throws Exception {
 
     public void testOverflowToDisk() throws Exception {
         assumeFalse("https://github.com/elastic/elasticsearch/issues/44609", Constants.WINDOWS);
+        // This test repeatedly fails in encryption-at-rest (EAR) builds, and
+        // the only way to detect such a build appears to be the CI job name
+        assumeFalse("https://github.com/elastic/elasticsearch/issues/58806",
+            System.getenv().getOrDefault("JOB_NAME", "not a CI build").contains("EAR"));
         Detector.Builder detector = new Detector.Builder("mean", "value");
         detector.setByFieldName("clientIP");
 
@@ -391,7 +395,7 @@ public void testForceStopSetsForecastToFailed() throws Exception {
         job.setAnalysisConfig(analysisConfig);
         job.setDataDescription(dataDescription);
         String jobId = job.getId();
-      
+
         registerJob(job);
         putJob(job);
         openJob(job.getId());
@@ -407,7 +411,7 @@ public void testForceStopSetsForecastToFailed() throws Exception {
 
         postData(job.getId(), data.stream().collect(Collectors.joining()));
         flushJob(job.getId(), false);
-      
+
         String forecastId = forecast(jobId, TimeValue.timeValueDays(1000), TimeValue.ZERO);
         waitForecastStatus(jobId, forecastId, ForecastRequestStats.ForecastRequestStatus.values());