Bump webpack from 5.19.0 to 5.21.2

Bumps [webpack](https://github.com/webpack/webpack) from 5.19.0 to 5.21.2.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](https://github.com/webpack/webpack/compare/v5.19.0...v5.21.2)

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

package.json

@@ -121,6 +121,6 @@
     "terser": "5.5.1",
     "ts-node": "9.1.1",
     "typescript": "4.1.3",
-    "webpack": "5.19.0"
+    "webpack": "5.21.2"
   }
 }

yarn.lock

@@ -7829,10 +7829,10 @@ webpack-sources@^2.1.1:
     source-list-map "^2.0.1"
     source-map "^0.6.1"
 
-webpack@5.19.0, webpack@^5.1.0:
-  version "5.19.0"
-  resolved "https://registry.npmjs.org/webpack/-/webpack-5.19.0.tgz#1a5fee84dd63557e68336b0774ac4a1c81aa2c73"
-  integrity sha512-egX19vAQ8fZ4cVYtA9Y941eqJtcZAK68mQq87MMv+GTXKZOc3TpKBBxdGX+HXUYlquPxiluNsJ1VHvwwklW7CQ==
+webpack@5.21.2, webpack@^5.1.0:
+  version "5.21.2"
+  resolved "https://registry.npmjs.org/webpack/-/webpack-5.21.2.tgz#647507e50d3637695be28af58a6a8246050394e7"
+  integrity sha512-xHflCenx+AM4uWKX71SWHhxml5aMXdy2tu/vdi4lClm7PADKxlyDAFFN1rEFzNV0MAoPpHtBeJnl/+K6F4QBPg==
   dependencies:
     "@types/eslint-scope" "^3.7.0"
     "@types/estree" "^0.0.46"
@@ -7852,7 +7852,6 @@ webpack@5.19.0, webpack@^5.1.0:
     loader-runner "^4.2.0"
     mime-types "^2.1.27"
     neo-async "^2.6.2"
-    pkg-dir "^5.0.0"
     schema-utils "^3.0.0"
     tapable "^2.1.1"
     terser-webpack-plugin "^5.1.1"