Fix docs link to Lucene stop filter (#87037)

Updates the docs with the new Javadoc location for Lucene's stop filter.

Closes #87034.

Author: amitmbm

docs/reference/analysis/tokenfilters/stop-tokenfilter.asciidoc

@@ -19,7 +19,7 @@ In addition to English, the `stop` filter supports predefined
 languages>>. You can also specify your own stop words as an array or file.
 
 The `stop` filter uses Lucene's
-{lucene-analysis-docs}/StopFilter.html[StopFilter].
+{lucene-analysis-docs}/core/StopFilter.html[StopFilter].
 
 [[analysis-stop-tokenfilter-analyze-ex]]
 ==== Example
@@ -374,4 +374,4 @@ parameter and a link to their predefined stop words in Lucene.
 
 [[turkish-stop-words]]
 `_turkish_`::
-{lucene-stop-word-link}/tr/stopwords.txt[Turkish stop words]
+{lucene-stop-word-link}/tr/stopwords.txt[Turkish stop words]