Use commander preAction hook for setMode

Hooks are new to commander v8. We can use hooks to ensure that `setMode`
is called before every command is invoked.

node_modules/commander/package.json

@@ -1,6 +1,6 @@
 {
   "name": "commander",
-  "version": "6.0.0",
+  "version": "8.0.0-1",
   "description": "the complete solution for node.js command-line programs",
   "keywords": [
     "commander",
@@ -19,30 +19,51 @@
     "url": "https://github.com/tj/commander.js.git"
   },
   "scripts": {
-    "lint": "eslint index.js \"tests/**/*.js\"",
-    "typescript-lint": "eslint typings/*.ts",
+    "lint": "eslint index.js esm.mjs \"lib/*.js\" \"tests/**/*.js\"",
+    "typescript-lint": "eslint typings/*.ts tests/*.ts",
     "test": "jest && npm run test-typings",
-    "test-typings": "tsc -p tsconfig.json"
+    "test-esm": "node --experimental-modules ./tests/esm-imports-test.mjs",
+    "test-typings": "tsd",
+    "typescript-checkJS": "tsc --allowJS --checkJS index.js lib/*.js --noEmit",
+    "test-all": "npm run test && npm run lint && npm run typescript-lint && npm run typescript-checkJS && npm run test-esm"
   },
-  "main": "index",
+  "main": "./index.js",
   "files": [
     "index.js",
-    "typings/index.d.ts"
+    "lib/*.js",
+    "esm.mjs",
+    "typings/index.d.ts",
+    "package-support.json"
   ],
+  "type": "commonjs",
   "dependencies": {},
   "devDependencies": {
-    "@types/jest": "^26.0.5",
-    "@types/node": "^14.0.23",
-    "@typescript-eslint/eslint-plugin": "^2.34.0",
-    "eslint": "^6.8.0",
-    "eslint-config-standard-with-typescript": "^16.0.0",
-    "eslint-plugin-jest": "^23.18.0",
-    "jest": "^26.1.0",
-    "standard": "^14.3.4",
-    "typescript": "^3.9.7"
+    "@types/jest": "^26.0.23",
+    "@types/node": "^14.17.1",
+    "@typescript-eslint/eslint-plugin": "^4.25.0",
+    "@typescript-eslint/parser": "^4.25.0",
+    "eslint": "^7.27.0",
+    "eslint-config-standard": "^16.0.3",
+    "eslint-plugin-jest": "^24.3.6",
+    "jest": "^27.0.1",
+    "standard": "^16.0.3",
+    "ts-jest": "^27.0.1",
+    "tsd": "^0.16.0",
+    "typescript": "^4.3.2"
+  },
+  "types": "typings/index.d.ts",
+  "jest": {
+    "testEnvironment": "node",
+    "collectCoverage": true,
+    "transform": {
+      "^.+\\.tsx?$": "ts-jest"
+    },
+    "testPathIgnorePatterns": [
+      "/node_modules/"
+    ]
   },
-  "typings": "typings/index.d.ts",
   "engines": {
-    "node": ">= 6"
-  }
+    "node": ">= 12"
+  },
+  "support": true
 }