Update dependency @tryghost/helpers-gatsby to v2.0.18

Author: renovate[bot]

package.json

@@ -39,7 +39,7 @@
   },
   "dependencies": {
     "@tryghost/helpers": "1.1.87",
-    "@tryghost/helpers-gatsby": "2.0.17",
+    "@tryghost/helpers-gatsby": "2.0.18",
     "cheerio": "1.0.0-rc.11",
     "gatsby": "4.25.7",
     "gatsby-awesome-pagination": "0.3.8",

yarn.lock

@@ -2205,17 +2205,17 @@
   dependencies:
     axios "^0.27.0"
 
-"@tryghost/[email protected].17":
-  version "2.0.17"
-  resolved "https://registry.yarnpkg.com/@tryghost/helpers-gatsby/-/helpers-gatsby-2.0.17.tgz#befcc72714d06c314acbb6c7bdfb1912f5126046"
-  integrity sha512-pdOZodueg2Sy7P+M8bfUM6f3MFqR8WrHe0r3okYtoTnKLYfz1jILCi0cPgO/GGb8A8M7IHJvcrC8ZLIm0fCDoA==
+"@tryghost/[email protected].18":
+  version "2.0.18"
+  resolved "https://registry.yarnpkg.com/@tryghost/helpers-gatsby/-/helpers-gatsby-2.0.18.tgz#b671ae897e9b7c19abafa80b040f7367ee03860e"
+  integrity sha512-xWnKSphK3RZzMHPwlLO2Jtjq3FejwpHkDn8BaKzXnzNVWi8HOjDeTs3L/0HfeYtrL2vXn5esU2X5yztdW0UyZQ==
   dependencies:
     "@gatsbyjs/reach-router" "1.3.9"
-    "@tryghost/helpers" "^1.1.86"
+    "@tryghost/helpers" "^1.1.87"
     gatsby-link "4.17.0"
     prop-types "^15.6.2"
 
-"@tryghost/[email protected]", "@tryghost/helpers@^1.1.86":
+"@tryghost/[email protected]", "@tryghost/helpers@^1.1.87":
   version "1.1.87"
   resolved "https://registry.yarnpkg.com/@tryghost/helpers/-/helpers-1.1.87.tgz#4569256c376982d29c4c30ac6c56b94e5755717c"
   integrity sha512-XYlyuoXNBHy9n008mNJKowFlhwJKlkP8Xi8s96HcpZsJM40Ll/xHPFnQjr+QkKJuAjafgkNZymu37mxT1WChjw==