Bump gatsby-transformer-yaml from 2.6.0 to 2.8.0 in /website (#2211)

Bumps [gatsby-transformer-yaml](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-transformer-yaml) from 2.6.0 to 2.8.0.
- [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@2.8.0/packages/gatsby-transformer-yaml)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

website/package.json

@@ -48,7 +48,7 @@
     "gatsby-remark-images": "^3.8.0",
     "gatsby-remark-smartypants": "^2.6.0",
     "gatsby-source-filesystem": "^2.8.0",
-    "gatsby-transformer-yaml": "^2.6.0",
+    "gatsby-transformer-yaml": "^2.8.0",
     "graphviz-react": "^1.1.1",
     "is-absolute-url": "^3.0.3",
     "moment": "^2.29.1",

website/yarn.lock

@@ -8290,10 +8290,10 @@ gatsby-telemetry@^1.6.0, gatsby-telemetry@^1.7.1:
     node-fetch "^2.6.1"
     uuid "3.4.0"
 
-gatsby-transformer-yaml@^2.6.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/gatsby-transformer-yaml/-/gatsby-transformer-yaml-2.6.0.tgz#7c60c1ee41b0d120b384734906d8f48310a47b0e"
-  integrity sha512-yaPR2wQCX9Izlgt5KDeO5HiMXKruPEWo5DoZa4zezs7gvPegQ7ezpXL/s89Qpa/SqWu9oh8K/NstcSqEJp5xgA==
+gatsby-transformer-yaml@^2.8.0:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/gatsby-transformer-yaml/-/gatsby-transformer-yaml-2.8.0.tgz#6b0a353efdbbcc2f38896d65087169b4c09bf9a6"
+  integrity sha512-z7XhhGFshOw2yGKcerD7LDbFjJHhntwcrriktDic+dvbN3/UKrfJdiF4aJrSnP/MFwpclqti17Zo7BJSWXLiow==
   dependencies:
     "@babel/runtime" "^7.12.5"
     js-yaml "^3.14.0"