fix: degrade enhanced-resolve to 3.4.1 for compatibility

Author: clarkdo

package.json

@@ -10,7 +10,7 @@
     "release": "standard-version"
   },
   "dependencies": {
-    "enhanced-resolve": "^4.0.0-beta.4"
+    "enhanced-resolve": "^3.4.1"
   },
   "devDependencies": {
     "eslint": "^4.15.0",

yarn.lock

@@ -461,13 +461,14 @@ dotgitignore@^1.0.3:
     find-up "^2.1.0"
     minimatch "^3.0.4"
 
-enhanced-resolve@^4.0.0-beta.4:
-  version "4.0.0-beta.4"
-  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-4.0.0-beta.4.tgz#17e14aea8ded4d6daa4a6bff67f2d38fcca76452"
+enhanced-resolve@^3.4.1:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz#0421e339fd71419b3da13d129b3979040230476e"
   dependencies:
     graceful-fs "^4.1.2"
     memory-fs "^0.4.0"
-    tapable "^1.0.0-beta.4"
+    object-assign "^4.0.1"
+    tapable "^0.2.7"
 
 errno@^0.1.3:
   version "0.1.6"
@@ -1579,9 +1580,9 @@ table@^4.0.1:
     slice-ansi "1.0.0"
     string-width "^2.1.1"
 
-tapable@^1.0.0-beta.4:
-  version "1.0.0-beta.5"
-  resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.0.0-beta.5.tgz#9bc844b856487e03345b7d3361288aefd97f8303"
+tapable@^0.2.7:
+  version "0.2.8"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
 
 text-extensions@^1.0.0:
   version "1.7.0"