build(deps-dev): Bump watchpack from 2.3.1 to 2.4.0 in /docs (#8700)

Bumps [watchpack](https://github.com/webpack/watchpack) from 2.3.1 to 2.4.0.
- [Release notes](https://github.com/webpack/watchpack/releases)
- [Commits](https://github.com/webpack/watchpack/compare/v2.3.1...v2.4.0)

---
updated-dependencies:
- dependency-name: watchpack
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/package-lock.json

@@ -13,7 +13,7 @@
       },
       "devDependencies": {
         "@vuepress/plugin-html-redirect": "^0.1.4",
-        "watchpack": "^2.3.1"
+        "watchpack": "^2.4.0"
       }
     },
     "node_modules/@algolia/cache-browser-local-storage": {
@@ -13471,9 +13471,9 @@
       }
     },
     "node_modules/watchpack": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.3.1.tgz",
-      "integrity": "sha512-x0t0JuydIo8qCNctdDrn1OzH/qDzk2+rdCOC3YzumZ42fiMqmQ7T3xQurykYMhYfHaPHTp4ZxAx2NfUo1K6QaA==",
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.4.0.tgz",
+      "integrity": "sha512-Lcvm7MGST/4fup+ifyKi2hjyIAwcdI4HRgtvTpIUxBRhB+RFtUh8XtDOxUfctVCnhVi+QQj49i91OyvzkJl6cg==",
       "dev": true,
       "dependencies": {
         "glob-to-regexp": "^0.4.1",
@@ -24873,9 +24873,9 @@
       }
     },
     "watchpack": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.3.1.tgz",
-      "integrity": "sha512-x0t0JuydIo8qCNctdDrn1OzH/qDzk2+rdCOC3YzumZ42fiMqmQ7T3xQurykYMhYfHaPHTp4ZxAx2NfUo1K6QaA==",
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.4.0.tgz",
+      "integrity": "sha512-Lcvm7MGST/4fup+ifyKi2hjyIAwcdI4HRgtvTpIUxBRhB+RFtUh8XtDOxUfctVCnhVi+QQj49i91OyvzkJl6cg==",
       "dev": true,
       "requires": {
         "glob-to-regexp": "^0.4.1",

docs/package.json

@@ -8,7 +8,7 @@
   },
   "devDependencies": {
     "@vuepress/plugin-html-redirect": "^0.1.4",
-    "watchpack": "^2.3.1"
+    "watchpack": "^2.4.0"
   },
   "scripts": {
     "preserve": "./pre.sh",