build: bump ts-loader from 4.0.1 to 4.1.0 in /packages/extension

Bumps [ts-loader](https://github.com/TypeStrong/ts-loader) from 4.0.1 to 4.1.0.
- [Release notes](https://github.com/TypeStrong/ts-loader/releases)
- [Changelog](https://github.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md)
- [Commits](TypeStrong/ts-loader@v4.0.1...v4.1.0)

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

packages/extension/package.json

@@ -40,7 +40,7 @@
     "node-sass": "^4.7.2",
     "sass-loader": "^6.0.7",
     "ts-jest": "^22.4.1",
-    "ts-loader": "^4.0.1",
+    "ts-loader": "^4.1.0",
     "typescript": "^2.7.2",
     "vue-loader": "^14.2.1",
     "vue-template-compiler": "^2.5.13",

packages/extension/yarn.lock

@@ -7098,9 +7098,9 @@ ts-jest@^22.4.1:
     pkg-dir "^2.0.0"
     yargs "^11.0.0"
 
-ts-loader@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/ts-loader/-/ts-loader-4.0.1.tgz#3d920b059966efec9637133ab0ca9b04d625d59a"
+ts-loader@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/ts-loader/-/ts-loader-4.1.0.tgz#6216e75600941df3270bc4a7125e20aefb2dc5ea"
   dependencies:
     chalk "^2.3.0"
     enhanced-resolve "^4.0.0"