chore: migrate to eslint@9

Related to bpmn-io/internal-docs#1042

eslint.config.mjs

@@ -0,0 +1,61 @@
+import bpmnIoPlugin from 'eslint-plugin-bpmn-io';
+import reactHooksPlugin from 'eslint-plugin-react-hooks';
+import importPlugin from 'eslint-plugin-import';
+
+const buildScripts = [ '*.js', '*.mjs' ];
+
+export default [
+  {
+    ignores: [
+      'dist'
+    ]
+  },
+  ...bpmnIoPlugin.configs.browser,
+  ...bpmnIoPlugin.configs.jsx,
+  {
+    plugins: {
+      'react-hooks': reactHooksPlugin,
+      import: importPlugin
+    },
+    rules: {
+      ...reactHooksPlugin.configs.recommended.rules,
+      'import/first': 'error',
+      'import/no-amd': 'error',
+      'import/no-webpack-loader-syntax': 'error',
+      'react-hooks/exhaustive-deps': 'off'
+    }
+  },
+  ...bpmnIoPlugin.configs.node.map(config => {
+    return {
+      ...config,
+      files: [
+        ...buildScripts,
+        '**/test/**/*.js'
+      ]
+    };
+  }),
+  ...bpmnIoPlugin.configs.mocha.map(config => {
+    return {
+      ...config,
+      files: [
+        '**/test/**/*.js'
+      ]
+    };
+  }),
+  {
+    languageOptions: {
+      globals: {
+        sinon: true
+      },
+    },
+    files: [
+      '**/test/**/*.js'
+    ]
+  },
+  {
+    rules: {
+      'react/display-name': 'off',
+      'react/no-unescaped-entities': 'off'
+    }
+  }
+];