Add support to CommonJS

tools/esbuild.js

@@ -0,0 +1,15 @@
+import { build } from 'esbuild'
+import { nodeExternalsPlugin } from 'esbuild-node-externals'
+
+const buildConfig = {
+  entryPoints: ['lib/index.js'],
+  platform: 'node',
+  target: 'node14',
+  bundle: true,
+  outfile: 'dist/index.cjs',
+  format: 'cjs',
+  // got is a esm module, so we need to add it to the allowList, to include it in the bundle.
+  plugins: [nodeExternalsPlugin({ allowList: ['got'] })]
+}
+
+build(buildConfig).then(() => { }).catch(() => { process.exit(1) })