fix: better CI streamline for multi-platform

.github/workflows/go.yml

@@ -1,7 +1,7 @@
 # This workflow will build a golang project
 # For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
 
-name: "Go 1.20"
+name: "Go"
 
 on:
   push:
@@ -10,18 +10,20 @@ on:
     branches: [ "master" ]
 
 jobs:
-  go_build_test:
-    runs-on: ubuntu-latest
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ "ubuntu-latest", "windows-latest", "macos-latest" ]
+        go: [ "1.20.x", "1.21.0" ]
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
-
-    - name: Set up Go
-      uses: actions/setup-go@v4
+    - uses: actions/setup-go@v4
       with:
-        go-version: '1.20.7'
-
+        go-version: ${{ matrix.go }}
+    - run: go version
     - name: Build
       run: go build -v ./...
-
     - name: Test
-      run: go test -v ./...
+      run: go test -v ./...

.github/workflows/go_1_21.yml

@@ -1,27 +0,0 @@
-# This workflow will build a golang project
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
-
-name: "Go 1.21"
-
-on:
-  push:
-    branches: [ "master" ]
-  pull_request:
-    branches: [ "master" ]
-
-jobs:
-  go_build_test:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Set up Go
-      uses: actions/setup-go@v4
-      with:
-        go-version: '1.21.0'
-
-    - name: Build
-      run: go build -v ./...
-
-    - name: Test
-      run: go test -v ./...

README.md

@@ -1,6 +1,5 @@
 # ![uTLS](logo_small.png) uTLS
-[![Build Status](https://github.com/refraction-networking/utls/actions/workflows/go_1_20.yml/badge.svg?branch=master)](https://github.com/refraction-networking/utls/actions/workflows/go_1_20.yml) 
-[![Build Status](https://github.com/refraction-networking/utls/actions/workflows/go_1_21.yml/badge.svg?branch=master)](https://github.com/refraction-networking/utls/actions/workflows/go_1_21.yml) 
+[![Build Status](https://github.com/refraction-networking/utls/actions/workflows/go.yml/badge.svg?branch=master)](https://github.com/refraction-networking/utls/actions/workflows/go.yml) 
 [![godoc](https://img.shields.io/badge/godoc-reference-blue.svg)](https://godoc.org/github.com/refraction-networking/utls#UConn)
 ---
 uTLS is a fork of "crypto/tls", which provides ClientHello fingerprinting resistance, low-level access to handshake, fake session tickets and some other features. Handshake is still performed by "crypto/tls", this library merely changes ClientHello part of it and provides low-level access.