Bump gatsby-transformer-yaml from 2.2.10 to 2.2.12

Bumps [gatsby-transformer-yaml](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-transformer-yaml) from 2.2.10 to 2.2.12.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-transformer-yaml/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-transformer-yaml@2.2.12/packages/gatsby-transformer-yaml)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package.json

@@ -15,7 +15,7 @@
     "gatsby-plugin-sharp": "^2.2.27",
     "gatsby-source-filesystem": "^2.1.26",
     "gatsby-transformer-sharp": "^2.2.17",
-    "gatsby-transformer-yaml": "^2.2.10",
+    "gatsby-transformer-yaml": "^2.2.12",
     "postcss-custom-media": "^7.0.8",
     "postcss-nested": "^4.1.2",
     "prop-types": "^15.7.2",

yarn.lock

@@ -5304,12 +5304,12 @@ gatsby-transformer-sharp@^2.2.17:
     semver "^5.7.1"
     sharp "^0.23.0"
 
-gatsby-transformer-yaml@^2.2.10:
-  version "2.2.10"
-  resolved "https://registry.yarnpkg.com/gatsby-transformer-yaml/-/gatsby-transformer-yaml-2.2.10.tgz#c6ba97675e4ab3875f32257d92a6b7fb48bc471a"
-  integrity sha512-mjgEMFNAfco9szRugEdzjjFEPs0sy8yVjMX0yGB0qt9fk4UHIm+S5mVogHeFEA61g4pkshjGvqCpKLRVQaViJw==
+gatsby-transformer-yaml@^2.2.12:
+  version "2.2.12"
+  resolved "https://registry.yarnpkg.com/gatsby-transformer-yaml/-/gatsby-transformer-yaml-2.2.12.tgz#21e59fccb1bbf5812916f1796534250d35df114a"
+  integrity sha512-wkgF5ydsT2H005M77x7LwmaPZBwqp4jUW1eP4/YJwolp36tsBKMPGZBGCN5PvysrkxEXtF7KO0Mhj2PNhvqyxw==
   dependencies:
-    "@babel/runtime" "^7.6.0"
+    "@babel/runtime" "^7.6.2"
     js-yaml "^3.13.1"
     lodash "^4.17.15"
     unist-util-select "^1.5.0"