chore(release): 1.8.0 [skip ci]

# [1.8.0](1.7.0...1.8.0) (2020-10-22)

### Features

* **ESM:** Target ESNext in ESM builds ([d44f960](d44f960))

Author: semantic-release-bot

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@ideal-postcodes/core-interface",
-  "version": "1.7.0",
+  "version": "1.8.0",
   "description": "Interface specification for javascript based API Clients to api.ideal-postcodes.co.uk",
   "author": {
     "name": "Ideal Postcodes",