fix(deps): update dependency date-fns to ^2.4.0

Author: renovate-bot

package.json

@@ -129,7 +129,7 @@
     "vscode-languageserver-types": "^3.14.0"
   },
   "dependencies": {
-    "date-fns": "^2.0.0-alpha.24",
+    "date-fns": "^2.4.0",
     "rxjs": "^6.4.0",
     "tagged-template-noop": "^2.1.0"
   },

yarn.lock

@@ -2190,10 +2190,10 @@ data-urls@^1.1.0:
     whatwg-mimetype "^2.2.0"
     whatwg-url "^7.0.0"
 
-date-fns@^2.0.0-alpha.24:
-  version "2.0.0-alpha.24"
-  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-2.0.0-alpha.24.tgz#2988c137c72275af29d7d21cc53eb52b3a8c2586"
-  integrity sha512-jpLzKHKSq0nTcZ3K5ZnTelxWmUwPepuoEaXkATwIUnc1tc+/rIooAvDMR+zdAGnwQ35eVWiyn5dikoLHjhEYeA==
+date-fns@^2.4.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-2.4.0.tgz#e02d1d08ce80ae1db3de40a0028c9f54203d034b"
+  integrity sha512-xS547fK1omgCgOGbyU0fBY2pdeXQ9/WO/PMsVgX1jtF56dXNHrV3Z+GKWIOE7IG+UEeu+fTyTlnIvBKbxXxdSw==
 
 date-now@^0.1.4:
   version "0.1.4"