Update dependency webpack to v5

.github/workflows/test.yml

@@ -18,4 +18,4 @@ jobs:
           node-version: ${{ matrix.node-version }}
       - run: npm install --global yarn@1
       - run: yarn install
-      - run: yarn test
+      - run: npm test

example/example.test.js

@@ -5,9 +5,12 @@ const config = require('./webpack.config');
 test('extracts frontmatter and body as an object', () =>
   new Promise((resolve) => {
     webpack(config, (error, stats) => {
+      if (error) {
+        throw error;
+      }
       const bundlePath = path.resolve(
         stats.compilation.compiler.outputPath,
-        stats.toJson().assetsByChunkName.main
+        stats.toJson().assetsByChunkName.main[0]
       );
       expect(require(bundlePath)).toMatchInlineSnapshot(`
         Object {

example/webpack.config.js

@@ -14,7 +14,7 @@ module.exports = {
     rules: [
       {
         test: /\.md$/,
-        loaders: ['json-loader', frontMatterLoader],
+        use: ['json-loader', frontMatterLoader],
       },
     ],
   },

index.js

@@ -1,11 +1,10 @@
 'use strict';
 
-var loaderUtils = require('loader-utils');
 var fm = require('front-matter');
 
 module.exports = function (source) {
   this.cacheable && this.cacheable();
-  var options = loaderUtils.getOptions(this) || {};
+  var options = this.getOptions() || {};
 
   var frontmatter = fm(source);
   if (options.onlyAttributes) {

index.test.js

@@ -10,7 +10,7 @@ Here is some example content`;
 test('extracts frontmatter and body as an object', () => {
   const context = {
     cacheable: jest.fn(),
-    query: '',
+    getOptions: () => ({}),
   };
 
   expect(frontMatterLoader.call(context, source)).toBe(
@@ -29,7 +29,7 @@ test('extracts frontmatter and body as an object', () => {
 test('extracts only the frontmatter when onlyAttributes is passed', () => {
   const context = {
     cacheable: jest.fn(),
-    query: '?onlyAttributes',
+    getOptions: () => ({ onlyAttributes: true }),
   };
 
   expect(frontMatterLoader.call(context, source)).toBe(
@@ -40,7 +40,7 @@ test('extracts only the frontmatter when onlyAttributes is passed', () => {
 test('extracts only the body when onlyBody is passed', () => {
   const context = {
     cacheable: jest.fn(),
-    query: '?onlyBody',
+    getOptions: () => ({ onlyBody: true }),
   };
 
   expect(frontMatterLoader.call(context, source)).toBe(

package.json

@@ -25,14 +25,13 @@
   },
   "homepage": "https://github.com/elliottsj/front-matter-loader#readme",
   "dependencies": {
-    "front-matter": "^4.0.0",
-    "loader-utils": "^2.0.0"
+    "front-matter": "^4.0.0"
   },
   "devDependencies": {
     "jest": "26.5.3",
     "json-loader": "0.5.7",
     "prettier": "2.1.2",
-    "webpack": "4.44.1"
+    "webpack": "5.1.3"
   },
   "jest": {
     "testEnvironment": "node"