config becomes start/run arg so we are sure it gets updated on any (re)start

This is because we now have the supervisor not destroyed over time

Still intermediate step where server.go regenerates the client entirely.

client/server/server_test.go

@@ -114,7 +114,8 @@ func TestConnectWithRetryRuns(t *testing.T) {
 	t.Setenv(maxRetryTimeVar, "5s")
 	t.Setenv(retryMultiplierVar, "1")
 
-	s.connectWithRetryRuns(ctx, config, s.statusRecorder, nil, nil)
+	client := s.newSessionClient(ctx)
+	s.connectWithRetryRuns(ctx, client, config, s.statusRecorder, nil, nil)
 	if counter < 3 {
 		t.Fatalf("expected counter > 2, got %d", counter)
 	}