Updated admin api schema to include tiers for post/page

refs TryGhost/Team#1071

- new `tiers` key is now attached to posts/pages API response to include tiers visibility
- updates expected response for post/page in tests to include `tiers`

package.json

@@ -56,7 +56,7 @@
     "@nexes/nql": "0.6.0",
     "@sentry/node": "6.17.3",
     "@tryghost/adapter-manager": "0.2.27",
-    "@tryghost/admin-api-schema": "2.8.0",
+    "@tryghost/admin-api-schema": "2.9.0",
     "@tryghost/bookshelf-plugins": "0.3.7",
     "@tryghost/bootstrap-socket": "0.2.16",
     "@tryghost/color-utils": "0.1.7",

test/regression/api/canary/admin/utils.js

@@ -64,7 +64,8 @@ const expectedProperties = {
         'meta_description',
         'email_subject',
         'frontmatter',
-        'email_only'
+        'email_only',
+        'tiers'
     ],
     user: [
         'id',

yarn.lock

@@ -1156,10 +1156,10 @@
   dependencies:
     "@tryghost/errors" "^1.2.1"
 
-"@tryghost/admin-api-schema@2.8.0":
-  version "2.8.0"
-  resolved "https://registry.yarnpkg.com/@tryghost/admin-api-schema/-/admin-api-schema-2.8.0.tgz#5a069b962b49cf509b0a2f9f2d4defb99489de71"
-  integrity sha512-ATWhJ6QErOxwq3RIIg3HqABMk4OpwZVUjgJgDit3c8wR58qzikEsAPFqgg5kQcA/1xgC97TSynNPCGALYJQw1g==
+"@tryghost/admin-api-schema@2.9.0":
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/@tryghost/admin-api-schema/-/admin-api-schema-2.9.0.tgz#8dbc9e1f320d94c1f404126f3a907e6984a1b28e"
+  integrity sha512-Tv/Obr40IU5k2XmUrN+K7kSub2VQMMnjLQZfwAiMRvUAahKa/rYKunIB1UKgTjd57WdHJncYRbO9UcPoRLn+nQ==
   dependencies:
     "@tryghost/errors" "^0.2.10"
     lodash "^4.17.11"