[ML] Switch message and detail for model snapshot deprecations (#81108)

This is a fix to the fix of #81060. In the original fix where I tried to
port the changes from #79387 to master I didn't notice that the text of
the message and detail of the deprecation had been largely switched
around. My tweaks to the wording in #81060 did not make this major
switch. This PR switches the two strings we generate. This is only for
8.0 and 8.1. For 7.16 the discrepancy became obvious in the backport of
#81060 to that branch, so it's already correct there.

Author: droberts195

x-pack/plugin/deprecation/qa/rest/src/javaRestTest/java/org/elasticsearch/xpack/deprecation/MlDeprecationIT.java

@@ -105,7 +105,7 @@ public void testMlDeprecationChecks() throws Exception {
         assertThat(response.getMlSettingsIssues(), hasSize(1));
         assertThat(
             response.getMlSettingsIssues().get(0).getMessage(),
-            containsString("Delete model snapshot [1] or update it to 7.0.0 or greater")
+            containsString("Model snapshot [1] for job [deprecation_check_job] has an obsolete minimum version")
         );
         assertThat(response.getMlSettingsIssues().get(0).getMeta(), equalTo(Map.of("job_id", jobId, "snapshot_id", "1")));
     }

x-pack/plugin/deprecation/src/main/java/org/elasticsearch/xpack/deprecation/MlDeprecationChecker.java

@@ -73,12 +73,9 @@ static Optional<DeprecationIssue> checkModelSnapshot(ModelSnapshot modelSnapshot
             StringBuilder details = new StringBuilder(
                 String.format(
                     Locale.ROOT,
-                    // Important: the Kibana upgrade assistant expects this to match the pattern /[Mm]odel snapshot/
-                    // and if it doesn't then the expected "Fix" button won't appear for this deprecation.
-                    "Model snapshot [%s] for job [%s] has an obsolete minimum version [%s].",
+                    "Delete model snapshot [%s] or update it to %s or greater.",
                     modelSnapshot.getSnapshotId(),
-                    modelSnapshot.getJobId(),
-                    modelSnapshot.getMinVersion()
+                    MIN_REPORTED_SUPPORTED_SNAPSHOT_VERSION
                 )
             );
             if (modelSnapshot.getLatestRecordTimeStamp() != null) {
@@ -95,9 +92,12 @@ static Optional<DeprecationIssue> checkModelSnapshot(ModelSnapshot modelSnapshot
                     DeprecationIssue.Level.CRITICAL,
                     String.format(
                         Locale.ROOT,
-                        "Delete model snapshot [%s] or update it to %s or greater.",
+                        // Important: the Kibana upgrade assistant expects this to match the pattern /[Mm]odel snapshot/
+                        // and if it doesn't then the expected "Fix" button won't appear for this deprecation.
+                        "Model snapshot [%s] for job [%s] has an obsolete minimum version [%s].",
                         modelSnapshot.getSnapshotId(),
-                        MIN_REPORTED_SUPPORTED_SNAPSHOT_VERSION
+                        modelSnapshot.getJobId(),
+                        modelSnapshot.getMinVersion()
                     ),
                     "https://www.elastic.co/guide/en/elasticsearch/reference/master/ml-upgrade-job-model-snapshot.html",
                     details.toString(),