chore: migrate to eslint@9

Related to bpmn-io/internal-docs#1042

eslint.config.mjs

@@ -0,0 +1,28 @@
+import bpmnIoPlugin from 'eslint-plugin-bpmn-io';
+
+export default [
+  ...bpmnIoPlugin.configs.browser.map(config => {
+    return {
+      ...config,
+      files: [
+        'lib/**/*.js'
+      ]
+    };
+  }),
+  ...bpmnIoPlugin.configs.node.map(config => {
+    return {
+      ...config,
+      files: [
+        '*.cjs'
+      ]
+    };
+  }),
+  ...bpmnIoPlugin.configs.mocha.map(config => {
+    return {
+      ...config,
+      files: [
+        '**/test/**/*.js'
+      ]
+    };
+  })
+];

package.json

@@ -19,7 +19,7 @@
   "scripts": {
     "all": "run-s lint test check-types",
     "check-types": "tsc --noEmit --noImplicitAny",
-    "lint": "eslint . --ext cjs,js",
+    "lint": "eslint .",
     "test": "karma start karma.conf.cjs",
     "dev": "npm test -- --auto-watch --no-single-run"
   },
@@ -38,7 +38,7 @@
     "@types/karma-mocha": "^1.3.4",
     "@types/mocha": "^10.0.6",
     "eslint": "^9.0.0",
-    "eslint-plugin-bpmn-io": "^2.0.0",
+    "eslint-plugin-bpmn-io": "^2.0.2",
     "karma": "^6.4.1",
     "karma-chrome-launcher": "^3.1.1",
     "karma-firefox-launcher": "^2.1.2",

test/suite.js

@@ -1,4 +1,3 @@
-// eslint-disable-next-line spaced-comment
 /// <reference types="webpack/module.d.ts" />
 
 const allTests = import.meta.webpackContext('.', {