Adding upstream version 2.52.6.

Signed-off-by: Daniel Baumann <daniel@debian.org>

utils/convert_s2b_new.go

@@ -0,0 +1,12 @@
+//go:build go1.20
+
+package utils
+
+import (
+	"unsafe"
+)
+
+// UnsafeBytes returns a byte pointer without allocation.
+func UnsafeBytes(s string) []byte {
+	return unsafe.Slice(unsafe.StringData(s), len(s))
+}