ambient-context-lwt lower bound on alcotest

uses check'

Signed-off-by: Marcello Seri <[email protected]>

Author: mseri

packages/ambient-context-lwt/ambient-context-lwt.0.1.0/opam

@@ -11,7 +11,7 @@ depends: [
   "ocaml" {>= "4.08"}
   "ambient-context" {= version}
   "lwt"
-  "alcotest" {with-test}
+  "alcotest" {with-test & >= "1.2.0"}
   "alcotest-lwt" {with-test}
   "bisect_ppx" {with-test}
   "odoc" {with-doc}