Update dependencies

vendor/github.com/coder/websocket/internal/xsync/go.go

@@ -0,0 +1,26 @@
+package xsync
+
+import (
+	"fmt"
+	"runtime/debug"
+)
+
+// Go allows running a function in another goroutine
+// and waiting for its error.
+func Go(fn func() error) <-chan error {
+	errs := make(chan error, 1)
+	go func() {
+		defer func() {
+			r := recover()
+			if r != nil {
+				select {
+				case errs <- fmt.Errorf("panic in go fn: %v, %s", r, debug.Stack()):
+				default:
+				}
+			}
+		}()
+		errs <- fn()
+	}()
+
+	return errs
+}