Bump gatsby-plugin-manifest from 2.2.39 to 2.2.40

Bumps [gatsby-plugin-manifest](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-plugin-manifest) from 2.2.39 to 2.2.40.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-plugin-manifest/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/[email protected]/packages/gatsby-plugin-manifest)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

packages/www/package.json

@@ -12,7 +12,7 @@
     "gatsby": "^2.19.10",
     "gatsby-image": "^2.2.39",
     "gatsby-plugin-eslint": "^2.0.8",
-    "gatsby-plugin-manifest": "^2.2.39",
+    "gatsby-plugin-manifest": "^2.2.40",
     "gatsby-plugin-mdx": "^1.0.69",
     "gatsby-plugin-offline": "^3.0.33",
     "gatsby-plugin-react-helmet": "^3.1.21",

yarn.lock

@@ -8575,13 +8575,13 @@ gatsby-plugin-eslint@^2.0.8:
   resolved "https://registry.yarnpkg.com/gatsby-plugin-eslint/-/gatsby-plugin-eslint-2.0.8.tgz#1ff7f546a427d274dc2de3932ba29822aae330c3"
   integrity sha512-vAMy37povmQJNg6ZxY78fkWR3pKwG8MNMhO3u+4vXj2MYT5avhFvHPJTAb126ZCuygf30gAWlpwbV50zP894Jw==
 
-gatsby-plugin-manifest@^2.2.39:
-  version "2.2.39"
-  resolved "https://registry.yarnpkg.com/gatsby-plugin-manifest/-/gatsby-plugin-manifest-2.2.39.tgz#6690db911dc5c20ef34a2d89c4db845def9c3d15"
-  integrity sha512-pNn6YAmMkAcHCQHjFRnAaU17Bz0nvYX7PPDrXmqKvTcKpkfgj9JzwFZimdPtjhGjh74aXNTdduO4lIiRdmjjKA==
+gatsby-plugin-manifest@^2.2.40:
+  version "2.2.40"
+  resolved "https://registry.yarnpkg.com/gatsby-plugin-manifest/-/gatsby-plugin-manifest-2.2.40.tgz#108b124eb537f6eaaf4d7cceb35e660dd4e26d0f"
+  integrity sha512-HulJATqu5pp1FX5e3fcg5/NMwek7v0VUqYaqtW164MTG0/knTRNhH0YJX/bvQgi3CDDW5bFX6bpKCQ5sbRo9DQ==
   dependencies:
     "@babel/runtime" "^7.7.6"
-    gatsby-core-utils "^1.0.26"
+    gatsby-core-utils "^1.0.27"
     semver "^5.7.1"
     sharp "^0.23.4"