build: sync dependency version numbers to make lerna happier

package.json

@@ -30,7 +30,7 @@
     "browser-sync": "^2.26.5",
     "browserify": "^16.2.3",
     "chai": "^4.2.0",
-    "chalk": "^2.4.2",
+    "chalk": "2.4.2",
     "cssnano": "^4.1.10",
     "disc": "^1.3.3",
     "enzyme": "^3.9.0",

website/package.json

@@ -38,7 +38,7 @@
     "aliasify": "^2.1.0",
     "babelify": "^10.0.0",
     "browserify": "^16.2.2",
-    "chalk": "^2.4.1",
+    "chalk": "2.4.2",
     "glob": "^7.1.2",
     "locale-code": "^2.0.2",
     "mdast-util-inject": "1.1.0",