[Docs] add deprecation warning for `delimited_payload_filter` renaming

docs/reference/analysis/tokenfilters/delimited-payload-tokenfilter.asciidoc

@@ -3,6 +3,13 @@
 
 Named `delimited_payload`. Splits tokens into tokens and payload whenever a delimiter character is found.
 
+[WARNING]
+============================================
+
+The older name `delimited_payload_filter` is deprecated and should not be used for new indices. Use `delimited_payload` instead.
+
+============================================
+
 Example: "the|1 quick|2 fox|3" is split by default into tokens `the`, `quick`, and `fox` with payloads `1`, `2`, and `3` respectively.
 
 Parameters:

modules/analysis-common/src/main/java/org/elasticsearch/analysis/common/LegacyDelimitedPayloadTokenFilterFactory.java

@@ -32,7 +32,7 @@ public class LegacyDelimitedPayloadTokenFilterFactory extends DelimitedPayloadTo
 
     LegacyDelimitedPayloadTokenFilterFactory(IndexSettings indexSettings, Environment env, String name, Settings settings) {
         super(indexSettings, env, name, settings);
-        if (indexSettings.getIndexVersionCreated().onOrAfter(Version.V_7_0_0_alpha1)) {
+        if (indexSettings.getIndexVersionCreated().onOrAfter(Version.V_6_2_0)) {
             DEPRECATION_LOGGER.deprecated("Deprecated [delimited_payload_filter] used, replaced by [delimited_payload]");
         }
     }

modules/analysis-common/src/test/resources/rest-api-spec/test/analysis-common/40_token_filters.yml

@@ -1028,8 +1028,8 @@
 ---
 "delimited_payload_filter":
     - skip:
-        version: " - 6.99.99"
-        reason:  delimited_payload_filter deprecated in 7.0, replaced by delimited_payload
+        version: " - 6.1.99"
+        reason:  delimited_payload_filter deprecated in 6.2, replaced by delimited_payload
         features: "warnings"
 
     - do: