integration_SUITE: Bump timetrap to one hour

It takes more than 30 minutes to compile Erlang from source, even with
the larger VM we selected for CI.

(cherry picked from commit 7313b75)

test/integration_SUITE.erl

@@ -11,6 +11,7 @@
 -include_lib("eunit/include/eunit.hrl").
 
 -export([all/0,
+         suite/0,
          groups/0,
          init_per_suite/1, end_per_suite/1,
          init_per_group/2, end_per_group/2,
@@ -25,6 +26,11 @@ all() ->
      {group, using_autoscaling_group}
     ].
 
+suite() ->
+    [
+     {timetrap, {hours, 1}}
+    ].
+
 groups() ->
     [
      {using_tags, [parallel], [cluster_was_formed]},