[DOCS] Fix Standard Token Filter deprecated macro for Asciidoctor (#42406)

Author: jrodewig

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

@@ -1,8 +1,13 @@
 [[analysis-standard-tokenfilter]]
 === Standard Token Filter
 
+ifdef::asciidoctor[]
+deprecated:[6.5.0, "This filter is deprecated and will be removed in the next major version."]
+endif::[]
+ifndef::asciidoctor[]
 deprecated[6.5.0, This filter is deprecated and will be removed in the next
 major version.]
+endif::[]
 
 A token filter of type `standard` that normalizes tokens extracted with
 the <<analysis-standard-tokenizer,Standard Tokenizer>>.