Update base Go version

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

README.md

@@ -17,7 +17,7 @@ See: `faas-cli template store list` to see which templates are both: recommended
 | Name | Language | Version | Linux base | Watchdog | Link
 |:-----|:---------|:--------|:-----------|:---------|:----
 | dockerfile | Dockerfile | N/A | Alpine Linux | classic | [Dockerfile template](https://github.com/openfaas/templates/tree/master/template/dockerfile)
-| go | Go | 1.22 | Alpine Linux | classic | [Legacy Go template (deprecated)](https://github.com/openfaas/templates/tree/master/template/go)
+| go | Go | 1.23 | Alpine Linux | classic | [Legacy Go template (deprecated)](https://github.com/openfaas/templates/tree/master/template/go)
 | node18 | NodeJS | 18 | Alpine Linux | of-watchdog | [NodeJS template (deprecated)](https://github.com/openfaas/templates/tree/master/template/node18)
 | node20 | NodeJS | 20 | Alpine Linux | of-watchdog | [NodeJS template](https://github.com/openfaas/templates/tree/master/template/node20)
 | bun-express | Bun | 1.0 | Alpine Linux | of-watchdog | [NodeJS template](https://github.com/openfaas/templates/tree/master/template/bun-express)

template/go/Dockerfile

@@ -1,5 +1,5 @@
 FROM --platform=${TARGETPLATFORM:-linux/amd64} ghcr.io/openfaas/classic-watchdog:0.3.1 AS watchdog
-FROM --platform=${BUILDPLATFORM:-linux/amd64} golang:1.22-alpine3.20 AS build
+FROM --platform=${BUILDPLATFORM:-linux/amd64} golang:1.23-alpine3.20 AS build
 
 ARG TARGETPLATFORM
 ARG BUILDPLATFORM

template/go/function/go.mod

@@ -1,3 +1,3 @@
 module handler/function
 
-go 1.19
+go 1.23

template/go/go.mod

@@ -1,3 +1,3 @@
 module handler
 
-go 1.20
+go 1.23

template/go/go.work

@@ -1,4 +1,4 @@
-go 1.19
+go 1.23
 
 use (
 	.