Revert "Revert "Merge pull request #127874 from microsoft/joh/webpack5""

This reverts commit c5f12c7226.

package.json

@@ -189,7 +189,7 @@
     "source-map": "0.6.1",
     "source-map-support": "^0.3.2",
     "style-loader": "^1.0.0",
-    "ts-loader": "^6.2.1",
+    "ts-loader": "^9.2.3",
     "tsec": "0.1.4",
     "typescript": "^4.4.0-dev.20210607",
     "typescript-formatter": "7.1.0",
@@ -199,9 +199,9 @@
     "vscode-debugprotocol": "1.47.0",
     "vscode-nls-dev": "^3.3.1",
     "vscode-telemetry-extractor": "^1.8.0",
-    "webpack": "^4.43.0",
-    "webpack-cli": "^3.3.12",
-    "webpack-stream": "^5.2.1",
+    "webpack": "^5.42.0",
+    "webpack-cli": "^4.7.2",
+    "webpack-stream": "^6.1.2",
     "xml2js": "^0.4.17",
     "yaserver": "^0.2.0"
   },