Relax timeout in waitForActiveLicense (elastic#113673)

No sense in failing these tests just because the cluster took a bit too
long to start up.

Closes elastic#113343

test/framework/src/main/java/org/elasticsearch/test/rest/ESRestTestCase.java

@@ -2394,7 +2394,7 @@ protected static void waitForActiveLicense(final RestClient restClient) throws E
                 assertThat("Expecting non-null license status", status, notNullValue());
                 assertThat("Expecting active license", status, equalTo("active"));
             }
-        });
+        }, 10, TimeUnit.MINUTES);
     }
 
     // TODO: replace usages of this with warning_regex or allowed_warnings_regex