feat: package is now ESM (#716)

* feat: package is now ESM

BREAKING CHANGE: package is now ESM

* build: remove bundle, package is already small

.github/workflows/update.yml

@@ -18,7 +18,7 @@ jobs:
           token: ${{ secrets.OCTOKITBOT_PAT }}
       - uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 20
           cache: npm
       - run: git checkout routes-update || true
       - run: npm install @octokit/types@latest

README.md

@@ -30,10 +30,8 @@ Node
 Install with `npm install @octokit/core @octokit/plugin-rest-endpoint-methods`. Optionally replace `@octokit/core` with a compatible module
 
 ```js
-const { Octokit } = require("@octokit/core");
-const {
-  restEndpointMethods,
-} = require("@octokit/plugin-rest-endpoint-methods");
+import { Octokit } from "@octokit/core";
+import { restEndpointMethods } from "@octokit/plugin-rest-endpoint-methods";
 ```
 
 </td></tr>

package.json

@@ -1,13 +1,14 @@
 {
   "name": "@octokit/plugin-rest-endpoint-methods",
   "version": "0.0.0-development",
+  "type": "module",
   "description": "Octokit plugin adding one method for all of api.github.com REST API endpoints",
   "scripts": {
     "build": "node scripts/build.mjs && tsc -p tsconfig.json",
     "lint": "prettier --check '{src,test,scripts}/**/*' '!scripts/update-endpoints/generated/**' '!src/generated/**' README.md package.json",
     "lint:fix": "prettier --write '{src,test,scripts}/**/*' '!scripts/update-endpoints/generated/**' '!src/generated/**' README.md package.json",
     "pretest": "npm run -s lint",
-    "test": "jest --coverage",
+    "test": "NODE_OPTIONS=\"$NODE_OPTIONS --experimental-vm-modules\" npx jest --coverage",
     "update-endpoints": "npm-run-all update-endpoints:*",
     "update-endpoints:fetch-json": "node scripts/update-endpoints/fetch-json.mjs",
     "update-endpoints:code": "node scripts/update-endpoints/code.mjs",
@@ -27,8 +28,8 @@
     "@octokit/types": "^12.6.0"
   },
   "devDependencies": {
-    "@octokit/core": "^5.0.0",
-    "@octokit/tsconfig": "^2.0.0",
+    "@octokit/core": "^6.0.0",
+    "@octokit/tsconfig": "^3.0.0",
     "@types/fetch-mock": "^7.3.1",
     "@types/jest": "^29.0.0",
     "@types/node": "^20.0.0",
@@ -52,14 +53,18 @@
     "typescript": "^5.0.0"
   },
   "peerDependencies": {
-    "@octokit/core": ">=5"
+    "@octokit/core": ">=6"
   },
   "jest": {
+    "extensionsToTreatAsEsm": [
+      ".ts"
+    ],
     "transform": {
       "^.+\\.(ts|tsx)$": [
         "ts-jest",
         {
-          "tsconfig": "test/tsconfig.test.json"
+          "tsconfig": "test/tsconfig.test.json",
+          "useESM": true
         }
       ]
     },