fix: Work around for husky regression.

Husky fails to run commitlint silently in 4.2.3. I've rolled back to
4.2.1 and locked the version there until the issue is fixed.

typicode/husky#676

package.json

@@ -35,7 +35,7 @@
     "@types/prettier": "^1.8.0",
     "@types/tapable": "1.0.4",
     "chai": "^4.2.0",
-    "husky": "^4.0.2",
+    "husky": "4.2.1",
     "istanbul": "^0.4.5",
     "lerna": "^3.16.4",
     "loader-utils": "^1.1.0",

yarn.lock

@@ -11055,10 +11055,10 @@ humanize-ms@^1.2.1:
   dependencies:
     ms "^2.0.0"
 
-husky@^4.0.2:
-  version "4.2.3"
-  resolved "https://registry.npmjs.org/husky/-/husky-4.2.3.tgz#3b18d2ee5febe99e27f2983500202daffbc3151e"
-  integrity sha512-VxTsSTRwYveKXN4SaH1/FefRJYCtx+wx04sSVcOpD7N2zjoHxa+cEJ07Qg5NmV3HAK+IRKOyNVpi2YBIVccIfQ==
+husky@4.2.1:
+  version "4.2.1"
+  resolved "https://registry.npmjs.org/husky/-/husky-4.2.1.tgz#b09f1bd9129e6c323cc515dc17081d0615e2d7c1"
+  integrity sha512-Qa0lRreeIf4Tl92sSs42ER6qc3hzoyQPPorzOrFWfPEVbdi6LuvJEqWKPk905fOWIR76iBpp7ECZNIwk+a8xuQ==
   dependencies:
     chalk "^3.0.0"
     ci-info "^2.0.0"
@@ -13390,8 +13390,6 @@ mime-types@^2.1.12, mime-types@^2.1.18, mime-types@^2.1.19, mime-types@^2.1.26,
   version "2.1.26"
   resolved "https://registry.npmjs.org/mime-types/-/mime-types-2.1.26.tgz#9c921fc09b7e149a65dfdc0da4d20997200b0a06"
   integrity sha512-01paPWYgLrkqAyrlDorC1uDwl2p3qZT7yl806vW7DvDoxwXi46jsjFbg+WdwotBIk6/MbEhO/dh5aZ5sNj/dWQ==
-  dependencies:
-    mime-db "1.43.0"
 
 [email protected], mime@^1.2.11, mime@^1.4.1, mime@^1.5.0:
   version "1.6.0"