PHPLIB-1057: Deprecate method IndexInfo::isGeoHaystack() (#1085)

MongoDB 5.0 removes support for "geoHaystack" indexes, the method "IndexInfo::isGeoHaystack()" will be removed in a future release

Author: GromNaN

source/reference/method/MongoDBModelIndexInfo-isGeoHaystack.txt

@@ -4,6 +4,9 @@ MongoDB\\Model\\IndexInfo::isGeoHaystack()
 
 .. versionadded:: 1.4
 
+.. deprecated:: 1.16
+   MongoDB 5.0 and later no longer supports geoHaystack indexes.
+
 .. default-domain:: mongodb
 
 .. contents:: On this page
@@ -24,10 +27,6 @@ Definition
 
       function isGeoHaystack(): boolean
 
-   .. note::
-
-      MongoDB 5.0 and later no longer supports geoHaystack indexes.
-
 Return Values
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