chore(deps-dev): bump ts-loader from 8.1.0 to 9.1.2

Bumps [ts-loader](https://github.com/TypeStrong/ts-loader) from 8.1.0 to 9.1.2.
- [Release notes](https://github.com/TypeStrong/ts-loader/releases)
- [Changelog](https://github.com/TypeStrong/ts-loader/blob/main/CHANGELOG.md)
- [Commits](https://github.com/TypeStrong/ts-loader/compare/v8.1.0...v9.1.2)

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

package.json

@@ -46,7 +46,7 @@
     "semantic-release": "^17.4.2",
     "terser-webpack-plugin": "^4.2.3",
     "ts-jest": "^25.5.1",
-    "ts-loader": "^8.1.0",
+    "ts-loader": "^9.1.2",
     "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.18.0",
     "typedoc": "^0.20.35",