Fix build and update build matrix

Author: moonglum

.github/workflows/tests.yml

@@ -9,6 +9,7 @@ jobs:
                 node-version:
                 - 14.x
                 - 18.x
+                - 19.x
         steps:
         - uses: actions/checkout@v3
         - uses: actions/setup-node@v3

lib/index.js

@@ -10,7 +10,7 @@ module.exports = {
 
 function faucetCSS(config, assetManager, { browsers, compact, sourcemaps } = {}) {
 	let bundlers = config.map(bundleConfig => makeBundler(bundleConfig,
-		assetManager, { browsers, compact, sourcemaps }));
+			assetManager, { browsers, compact, sourcemaps }));
 
 	return filepaths => Promise.all(bundlers.
 		map(bundler => bundler(filepaths)));