replace Object.values with object.values

package.json

@@ -89,6 +89,7 @@
     "has": "^1.0.3",
     "lodash": "^4.17.11",
     "minimatch": "^3.0.4",
+    "object.values": "^1.1.0",
     "read-pkg-up": "^2.0.0",
     "resolve": "^1.11.0"
   },

src/rules/no-unused-modules.js

@@ -9,6 +9,7 @@ import resolve from 'eslint-module-utils/resolve'
 import docsUrl from '../docsUrl'
 import { dirname, join } from 'path'
 import readPkgUp from 'read-pkg-up'
+import values from 'object.values'
 
 // eslint/lib/util/glob-util has been moved to eslint/lib/util/glob-utils with version 5.3
 // and has been moved to eslint/lib/cli-engine/file-enumerator in version 6
@@ -214,7 +215,7 @@ const fileIsInPkg = file => {
   }
 
   const checkPkgFieldObject = pkgField => {    
-      const pkgFieldFiles = Object.values(pkgField).map(value => join(basePath, value))
+      const pkgFieldFiles = values(pkgField).map(value => join(basePath, value))
       if (pkgFieldFiles.includes(file)) {
         return true
       }