fix: make sure the action can actually run as ESM

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
  run: pnpm run biome:ci
 
  - name: build typescript
- run: pnpm run build --noEmit
+ run: pnpm run build
 
  - name: check for unformatted sources
  run: |

action.yml

@@ -31,4 +31,4 @@ inputs:
  default: 'true'
 runs:
  using: 'node20'
- main: 'lib/main.js'
+ main: 'lib/main.mjs'

biome.json

@@ -1,7 +1,7 @@
 {
- "$schema": "https://biomejs.dev/schemas/1.7.1/schema.json",
+ "$schema": "https://biomejs.dev/schemas/1.8.1/schema.json",
  "files": {
- "include": ["./src/**/*.ts", "./test/**/*.ts"],
+ "include": ["./src/**/*.ts", "./test/**/*.ts", "tsup.config.ts"],
  "ignore": ["./test/fixtures/**/*"]
  },
  "organizeImports": {

package.json

@@ -7,7 +7,7 @@
  "main": "lib/main.js",
  "packageManager": "pnpm@9.3.0",
  "scripts": {
- "build": "tsc -p tsconfig.build.json",
+ "build": "tsup --config tsup.config.ts",
  "test": "cross-env NODE_OPTIONS=\"--no-warnings\" tap run --disable-coverage",
  "test:only": "pnpm run test --only",
  "coverage": "pnpm run test --no-disable-coverage --allow-incomplete-coverage --coverage-report=lcovonly",
@@ -58,6 +58,7 @@
  "sinon": "18.0.0",
  "tap": "19.2.5",
  "tsimp": "2.0.11",
+ "tsup": "8.1.0",
  "typescript": "5.4.5",
  "which": "4.0.0"
  }