Adding upstream version 2.52.6.

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

utils/deprecated.go

@@ -0,0 +1,16 @@
+package utils
+
+// Deprecated: Please use UnsafeString instead
+func GetString(b []byte) string {
+	return UnsafeString(b)
+}
+
+// Deprecated: Please use UnsafeBytes instead
+func GetBytes(s string) []byte {
+	return UnsafeBytes(s)
+}
+
+// Deprecated: Please use CopyString instead
+func ImmutableString(s string) string {
+	return CopyString(s)
+}