fix: increase timeout when testing int cluster availability (#1032)

hack/test.sh

@@ -41,13 +41,17 @@ EOF
       exit 1
     fi
     echo "Retrying..."
-    sleep 5
+    sleep 10
   done
 
-  sleep 60
+  # Sleep to avoid a racing condition where `kubectl wait` below will fail
+  # immediately that the "echo" route is not found and can thus not be waited
+  # upon to complete.
+  sleep 30
 
-  # wait for the route to become ready
-  kubectl wait --for=condition=Ready route echo -n func
+  # Wait for the test to become available
+  echo "${em}  Waiting for echo route${me}"
+  kubectl wait --for=condition=Ready route echo -n func --timeout=120s
 
   echo "${em}  Invoking echo server${me}"
   curl http://echo.func.127.0.0.1.sslip.io/