chore(deps): bump loader-utils from 1.4.1 to 1.4.2 in /testbench (#317)

Bumps [loader-utils](https://github.com/webpack/loader-utils) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/webpack/loader-utils/releases)
- [Changelog](https://github.com/webpack/loader-utils/blob/v1.4.2/CHANGELOG.md)
- [Commits](webpack/loader-utils@v1.4.1...v1.4.2)

---
updated-dependencies:
- dependency-name: loader-utils
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

testbench/yarn.lock

@@ -3678,9 +3678,9 @@ loader-runner@^2.4.0:
   integrity sha512-Jsmr89RcXGIwivFY21FcRrisYZfvLMTWx5kOLc+JTxtpBOG6xML0vzbc6SEQG2FO9/4Fc3wW4LVcB5DmGflaRw==
 
 loader-utils@^1.0.2, loader-utils@^1.1.0, loader-utils@^1.2.3, loader-utils@^1.4.0:
-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.4.1.tgz#278ad7006660bccc4d2c0c1578e17c5c78d5c0e0"
-  integrity sha512-1Qo97Y2oKaU+Ro2xnDMR26g1BwMT29jNbem1EvcujW2jqt+j5COXyscjM7bLQkM9HaxI7pkWeW7gnI072yMI9Q==
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.4.2.tgz#29a957f3a63973883eb684f10ffd3d151fec01a3"
+  integrity sha512-I5d00Pd/jwMD2QCduo657+YM/6L3KZu++pmX9VFncxaxvHcru9jx1lBaFft+r4Mt2jK0Yhp41XlRAihzPxHNCg==
   dependencies:
     big.js "^5.2.2"
     emojis-list "^3.0.0"