xray-core: compatible with go1.21.5

xray-core/patches/010-go1.21.patch

@@ -0,0 +1,10 @@
+--- a/go.mod
++++ b/go.mod
+@@ -1,6 +1,6 @@
+ module github.com/xtls/xray-core
+ 
+-go 1.22
++go 1.21.5
+ 
+ require (
+ 	github.com/ghodss/yaml v1.0.1-0.20220118164431-d8423dcdf344