Singular workflow for testing all OSes and Archs

.editorconfig

@@ -11,3 +11,6 @@ insert_final_newline = true
 
 [*.md]
 trim_trailing_whitespace = false
+
+[*.yml]
+indent_style = space

.github/workflows/npm-test.yml

@@ -0,0 +1,38 @@
+name: test
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+        node_version:
+          - 12
+          - 14
+          - 16
+        architecture:
+          - x64
+        # an extra windows-x86 run:
+        include:
+          - os: windows-latest
+            node_version: 14
+            architecture: x86
+    name: Node ${{ matrix.node_version }} - ${{ matrix.architecture }} on ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node and install latest npm
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node_version }}
+          architecture: ${{ matrix.architecture }}
+          cache: "npm"
+      - run: npm i -g npm
+      - run: npm ci
+      - run: npm test

README.md

@@ -5,7 +5,7 @@
 
 [![npm](https://img.shields.io/npm/dt/@ffprobe-installer/ffprobe.svg?style=flat-square)](https://www.npmjs.com/package/@ffprobe-installer/ffprobe) [![npm](https://img.shields.io/npm/v/@ffprobe-installer/ffprobe.svg?style=flat-square)](https://www.npmjs.com/package/@ffprobe-installer/ffprobe?activeTab=versions) [![xo](https://img.shields.io/badge/code%20style-XO-60CFBE.svg?longCache=true&style=flat-square&logo=)](https://github.com/xojs/xo)
 
-![Linux Status](https://img.shields.io/github/workflow/status/SavageCore/node-ffprobe-installer/linux) [![Codecov](https://img.shields.io/codecov/c/github/SavageCore/node-ffprobe-installer.svg?style=flat-square)](https://codecov.io/gh/SavageCore/node-ffprobe-installer/)
+[![Build Status](https://img.shields.io/github/workflow/status/SavageCore/node-ffprobe-installer/test)](https://github.com/SavageCore/node-ffprobe-installer/actions/workflows/npm-test.yml) [![Codecov](https://img.shields.io/codecov/c/github/SavageCore/node-ffprobe-installer.svg?style=flat-square)](https://codecov.io/gh/SavageCore/node-ffprobe-installer/)
 
 Platform independent binary installer of [FFprobe](https://ffmpeg.org/) for node projects. Useful for tools that should "just work" in multiple environments.