Bump loader-utils to 1.4.2

Added `"resolutions": { "**/**/loader-utils": "1.4.2" }` to package.json, ran `yarn install` to update lock file, and then removed this line.

See https://stackoverflow.com/questions/57281107/avoiding-vulnerable-indirect-dependency-with-yarn and https://classic.yarnpkg.com/en/docs/selective-version-resolutions/

yarn.lock

@@ -10591,10 +10591,10 @@ loader-runner@^4.2.0:
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-4.2.0.tgz#d7022380d66d14c5fb1d496b89864ebcfd478384"
   integrity sha512-92+huvxMvYlMzMt0iIOukcwYBFpkYJdpl2xsZ7LrlayO7E8SOv+JJUEK17B/dJIHAOLMfh2dZZ/Y18WgmGtYNw==
 
-loader-utils@^1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.4.0.tgz#c579b5e34cb34b1a74edc6c1fb36bfa371d5a613"
-  integrity sha512-qH0WSMBtn/oHuwjy/NucEgbx5dbxxnxup9s4PVXJUDHZBQY+s0NWA9rJf53RBnQZxfch7euUui7hpoAPvALZdA==
+loader-utils@1.4.2, loader-utils@^1.4.0:
+  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"