feat: update webpack outside of examples (open-telemetry#963)

* feat: update webpack outside of examples

* chore: replace istanbul-instrumenter-loader with @jsdevtools/coverage-istanbul-loader

Co-authored-by: Valentin Marchaud <contact@vmarchaud.fr>

karma.conf.js

@@ -1,5 +1,5 @@
 /*!
- * Copyright 2020, OpenTelemetry Authors
+ * Copyright The OpenTelemetry Authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,10 +14,29 @@
  * limitations under the License.
  */
 
+const webpack = require('webpack');
+
 const karmaWebpackConfig = require('../../karma.webpack');
 const karmaBaseConfig = require('../../karma.base');
 
 module.exports = (config) => {
+  {
+    const plugins = karmaWebpackConfig.plugins = [];
+    plugins.push(new webpack.ProvidePlugin({
+      process: 'process/browser',
+    }));
+  }
+
+  {
+    const plugins = karmaBaseConfig.plugins = [];
+    const toAdd = Object.keys(require('./package.json').devDependencies)
+      .filter((packageName) => packageName.startsWith('karma-'))
+      .map((packageName) => require(packageName));
+    plugins.push(
+      ...toAdd
+    );
+  }
+
   config.set(Object.assign({}, karmaBaseConfig, {
     webpack: karmaWebpackConfig
   }))

package.json

@@ -48,25 +48,28 @@
     "@opentelemetry/api": "^1.0.2"
   },
   "devDependencies": {
+    "@jsdevtools/coverage-istanbul-loader": "3.0.5",
     "@opentelemetry/api": "1.0.2",
     "@types/mocha": "8.2.3",
     "@types/node": "16.11.21",
     "@types/webpack-env": "1.16.2",
+    "assert": "2.0.0",
     "gts": "3.1.0",
-    "istanbul-instrumenter-loader": "3.0.1",
-    "karma": "6.3.16",
-    "karma-chrome-launcher": "3.1.0",
+    "karma": "6.3.17",
+    "karma-chrome-launcher": "3.1.1",
     "karma-coverage-istanbul-reporter": "3.0.3",
     "karma-mocha": "2.0.1",
-    "karma-spec-reporter": "0.0.32",
-    "karma-webpack": "4.0.2",
+    "karma-spec-reporter": "0.0.33",
+    "karma-webpack": "5.0.0",
     "mocha": "7.2.0",
     "nyc": "15.1.0",
+    "process": "0.11.10",
     "rimraf": "3.0.2",
     "ts-loader": "8.3.0",
     "ts-mocha": "8.0.0",
     "typescript": "4.3.5",
-    "webpack": "4.46.0"
+    "webpack": "5.72.0",
+    "webpack-cli": "4.9.2"
   },
   "dependencies": {
     "@opentelemetry/core": "^1.0.0"