vendor: update all dependencies

vendor/cloud.google.com/go/bigtable/internal/gax/invoke_test.go

@@ -34,7 +34,7 @@ func TestRandomizedDelays(t *testing.T) {
 	deadline := time.Now().Add(1 * time.Second)
 	ctx, _ := context.WithDeadline(context.Background(), deadline)
 	var invokeTime time.Time
-	Invoke(ctx, func(childCtx context.Context) error {
+	_ = Invoke(ctx, func(childCtx context.Context) error {
 		// Keep failing, make sure we never slept more than max (plus a fudge factor)
 		if !invokeTime.IsZero() {
 			if got, want := time.Since(invokeTime), max; got > (want + 20*time.Millisecond) {

vendor/cloud.google.com/go/bigtable/internal/stat/stats.go

@@ -123,10 +123,15 @@ func (agg *Aggregate) String() string {
 
 // WriteCSV writes a csv file to the given Writer,
 // with a header row and one row per aggregate.
-func WriteCSV(aggs []*Aggregate, iow io.Writer) error {
+func WriteCSV(aggs []*Aggregate, iow io.Writer) (err error) {
 	w := csv.NewWriter(iow)
-	defer w.Flush()
-	err := w.Write([]string{"name", "count", "errors", "min", "median", "max", "p75", "p90", "p95", "p99"})
+	defer func() {
+		w.Flush()
+		if err == nil {
+			err = w.Error()
+		}
+	}()
+	err = w.Write([]string{"name", "count", "errors", "min", "median", "max", "p75", "p90", "p95", "p99"})
 	if err != nil {
 		return err
 	}