Update dependency go to v1.23.6

renovate[bot] · web-flow · commit 59199a6aca6b · 2025-02-04T18:40:55.000Z
diff --git a/go.mod b/go.mod
@@ -2,7 +2,7 @@ module github.com/ne-sachirou/go-graceful
 
 go 1.22
 
-toolchain go1.23.4
+toolchain go1.23.6
 
 require google.golang.org/grpc v1.70.0
 
