Bump to Go 1.21

Author: chriso

.github/workflows/build.yml

@@ -27,10 +27,4 @@ jobs:
       with:
         services: |
           redis
-    - name: Install Go tip
-      run: |
-        curl -sL https://storage.googleapis.com/go-build-snap/go/linux-amd64/$(git ls-remote https://github.com/golang/go.git HEAD | awk '{print $1;}').tar.gz -o gotip.tar.gz
-        ls -lah gotip.tar.gz
-        mkdir -p $HOME/gotip
-        tar -C $HOME/gotip -xzf gotip.tar.gz
-    - run: make test GO=$HOME/gotip/bin/go GOPATH=$HOME/gotip
+    - run: make test

Makefile

@@ -1,6 +1,6 @@
 .PHONY: clean proto test lint wasirun
 
-GO ?= gotip
+GO ?= go
 GOPATH ?= $(shell $(GO) env GOPATH)
 wasirun = $(GOPATH)/bin/wasirun
 

README.md

@@ -10,15 +10,13 @@ This library provides `net.Dial` and `net.Listen` functions for
 Applications built with this library are compatible with [WasmEdge][wasmedge]
 and [wasi-go][wasi-go] such as [Timecraft][timecraft].
 
-[gotip]:     https://pkg.go.dev/golang.org/dl/gotip
+[go-121]:    https://go.dev/blog/go1.21
 [timecraft]: https://github.com/stealthrocket/timecraft
 [wasi-go]:   https://github.com/stealthrocket/wasi-go
 [wasip1]:    https://tip.golang.org/doc/go1.21#wasip1
 [wasmedge]:  https://github.com/WasmEdge/WasmEdge
 
-_Note: GOOS=wasip1 will be released in Go 1.21. At this time you would need to
-use [gotip][gotip] to get the latest version of the Go compiler in order to use
-this package._
+_Note: `GOOS=wasip1` requires [Go 1.21][go-121]._
 
 ## Motivation
 

go.mod

@@ -1,5 +1,5 @@
 module github.com/stealthrocket/net
 
-go 1.20
+go 1.21
 
 require golang.org/x/net v0.10.0