Fix missing ESM build in npm package

Author: simonbrunel

docs/guide/getting-started.md

@@ -35,7 +35,9 @@ You can download the latest version of `chartjs-plugin-datalabels` from the [Git
 
 - `chartjs-plugin-datalabels.js` (recommended for development)
 - `chartjs-plugin-datalabels.min.js` (recommended for production)
-- `chartjs-plugin-datalabels.zip` (contains `.js` and `.min.js` versions)
+- `chartjs-plugin-datalabels.esm.js`
+- `chartjs-plugin-datalabels.tgz` (contains all builds)
+- `chartjs-plugin-datalabels.zip` (contains all builds)
 
 ## Integration
 

scripts/attach-gh-assets.js

@@ -10,6 +10,7 @@ const TAG = `v${pkg.version}`;
 const ASSETS = [
   `dist/${pkg.name}.js`,
   `dist/${pkg.name}.min.js`,
+  `dist/${pkg.name}.esm.js`,
   `dist/${pkg.name}.tgz`,
   `dist/${pkg.name}.zip`,
 ];

scripts/create-release-tag.js

@@ -7,6 +7,7 @@ const TAG = `v${pkg.version}`;
 const TAG_FILES = [
   `dist/${pkg.name}.js`,
   `dist/${pkg.name}.min.js`,
+  `dist/${pkg.name}.esm.js`,
   'bower.json',
 ];