integration: increase timeouts

Set the limit high enough to ensure failure in CI
signals a bug

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

frontend/gateway/grpcclient/client.go

@@ -32,7 +32,7 @@ type GrpcClient interface {
 }
 
 func New(ctx context.Context, opts map[string]string, session, product string, c pb.LLBBridgeClient, w []client.WorkerInfo) (GrpcClient, error) {
-	ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
+	ctx, cancel := context.WithTimeout(ctx, 15*time.Second)
 	defer cancel()
 	resp, err := c.Ping(ctx, &pb.PingRequest{})
 	if err != nil {

util/testutil/integration/sandbox.go

@@ -181,7 +181,7 @@ func runBuildkitd(conf *BackendConfig, args []string, logs map[string]*bytes.Buf
 		deferF.append(stop)
 	}
 
-	if err := waitUnix(address, 10*time.Second); err != nil {
+	if err := waitUnix(address, 15*time.Second); err != nil {
 		return "", nil, err
 	}