ES-9508 eql enable deprecation

Author: lukewhiting

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

@@ -971,7 +971,7 @@ static DeprecationIssue checkEqlEnabledSetting(
             Setting.Property.NodeScope,
             Setting.Property.DeprecatedWarning
         );
-        String url = "https://ela.st/es-deprecation-8-eql-enabled-setting";
+        String url = "https://ela.st/es-deprecation-7-eql-enabled-setting";
         return checkRemovedSetting(
             clusterState.metadata().settings(),
             settings,

x-pack/plugin/deprecation/src/test/java/org/elasticsearch/xpack/deprecation/NodeDeprecationChecksTests.java

@@ -778,7 +778,7 @@ public void testEqlEnabledSetting() {
         final DeprecationIssue expected = new DeprecationIssue(
             DeprecationIssue.Level.WARNING,
             "Setting [xpack.eql.enabled] is deprecated",
-            "https://ela.st/es-deprecation-8-eql-enabled-setting",
+            "https://ela.st/es-deprecation-7-eql-enabled-setting",
             "Remove the [xpack.eql.enabled] setting. As of 7.9.2 basic license level features are always enabled.",
             false,
             null