Doc: Update links to logstash plugin docs (#125675)

* Add logstash plugin repo to cross_links

docs/docset.yml

@@ -22,6 +22,7 @@ cross_links:
   - go-elasticsearch
   - kibana
   - logstash
+  - logstash-docs-md
 toc:
   - toc: reference
   - toc: release-notes

docs/reference/elasticsearch-plugins/integrations.md

@@ -20,10 +20,10 @@ Integrations are not plugins, but are external tools or modules that make it eas
 
 ### Supported by Elastic: [_supported_by_elastic]
 
-* [Logstash output to Elasticsearch](logstash://reference/plugins-outputs-elasticsearch.md): The Logstash `elasticsearch` output plugin.
-* [Elasticsearch input to Logstash](logstash://reference/plugins-inputs-elasticsearch.md) The Logstash `elasticsearch` input plugin.
-* [Elasticsearch event filtering in Logstash](logstash://reference/plugins-filters-elasticsearch.md) The Logstash `elasticsearch` filter plugin.
-* [Elasticsearch bulk codec](logstash://reference/plugins-codecs-es_bulk.md) The Logstash `es_bulk` plugin decodes the Elasticsearch bulk format into individual events.
+* [Logstash output to Elasticsearch](logstash-docs-md://lsr//plugins-outputs-elasticsearch.md): The Logstash `elasticsearch` output plugin.
+* [Elasticsearch input to Logstash](logstash-docs-md://lsr/plugins-inputs-elasticsearch.md) The Logstash `elasticsearch` input plugin.
+* [Elasticsearch event filtering in Logstash](logstash-docs-md://lsr/plugins-filters-elasticsearch.md) The Logstash `elasticsearch` filter plugin.
+* [Elasticsearch bulk codec](logstash-docs-md://lsr//plugins-codecs-es_bulk.md) The Logstash `es_bulk` plugin decodes the Elasticsearch bulk format into individual events.
 
 
 ### Supported by the community: [_supported_by_the_community_2]

docs/reference/query-languages/esql/esql-process-data-with-dissect-grok.md

@@ -13,7 +13,7 @@ Your data may contain unstructured strings that you want to structure. This make
 :alt: unstructured data
 :::
 
-{{es}} can structure your data at index time or query time. At index time, you can use the [Dissect](/reference/enrich-processor/dissect-processor.md) and [Grok](/reference/enrich-processor/grok-processor.md) ingest processors, or the {{ls}} [Dissect](logstash://reference/plugins-filters-dissect.md) and [Grok](logstash://reference/plugins-filters-grok.md) filters. At query time, you can use the {{esql}} [`DISSECT`](/reference/query-languages/esql/esql-commands.md#esql-dissect) and [`GROK`](/reference/query-languages/esql/esql-commands.md#esql-grok) commands.
+{{es}} can structure your data at index time or query time. At index time, you can use the [Dissect](/reference/enrich-processor/dissect-processor.md) and [Grok](/reference/enrich-processor/grok-processor.md) ingest processors, or the {{ls}} [Dissect](logstash-docs-md://lsr//plugins-filters-dissect.md) and [Grok](logstash-docs-md://lsr//plugins-filters-grok.md) filters. At query time, you can use the {{esql}} [`DISSECT`](/reference/query-languages/esql/esql-commands.md#esql-dissect) and [`GROK`](/reference/query-languages/esql/esql-commands.md#esql-grok) commands.
 
 ## `DISSECT` or `GROK`? Or both? [esql-grok-or-dissect]