redirect for AVS page

Author: rustagir

config/redirects

@@ -2,7 +2,11 @@ define: prefix docs/drivers/rust
 define: base https://www.mongodb.com/${prefix}
 define: versions v2.7 v2.8 v3.0 v3.1 v3.2 master
 
-symlink: current -> master
-
 raw: ${prefix}/ -> ${base}/current/
 raw: ${prefix}/stable -> ${base}/current/
+
+symlink: upcoming -> master
+symlink: current -> v3.2
+
+# general redirects
+[*-v3.1): ${prefix}/${version}/fundamentals/aggregation/vector-search -> ${base}/${version}/fundamentals/aggregation