DOCSP-45566: Update current in redirects file (#77)

Author: norareidy

config/redirects

@@ -2,7 +2,7 @@ define: prefix docs/languages/cpp/cpp-driver
 define: base https://www.mongodb.com/${prefix}
 define: versions v3.10 3.11 master
 
-symlink: current -> v3.10
+symlink: current -> v3.11
 symlink: upcoming -> master
 
 raw: ${prefix}/ -> ${base}/current/