chore: update go to 1.23

Author: mcncl

Makefile

@@ -7,7 +7,7 @@ PACKER_VERSION ?= 1.11.2
 PACKER_LINUX_FILES = $(exec find packer/linux)
 PACKER_WINDOWS_FILES = $(exec find packer/windows)
 
-GO_VERSION ?= 1.22
+GO_VERSION ?= 1.23
 
 FIXPERMS_FILES = go.mod go.sum $(exec find internal/fixperms)
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/buildkite/elastic-ci-stack-for-aws/v6
 
-go 1.22
+go 1.23
 
 require (
 	github.com/google/go-cmp v0.7.0