Bump gatsby-transformer-sharp from 2.3.18 to 2.3.19

Bumps [gatsby-transformer-sharp](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-transformer-sharp) from 2.3.18 to 2.3.19.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-transformer-sharp/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-transformer-sharp@2.3.19/packages/gatsby-transformer-sharp)

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

package.json

@@ -16,7 +16,7 @@
     "gatsby-plugin-sass": "^2.1.30",
     "gatsby-plugin-sharp": "^2.4.12",
     "gatsby-source-filesystem": "^2.1.56",
-    "gatsby-transformer-sharp": "^2.3.18",
+    "gatsby-transformer-sharp": "^2.3.19",
     "jsonp": "^0.2.1",
     "node-sass": "^4.13.1",
     "path-browserify": "^1.0.1",

yarn.lock

@@ -5746,12 +5746,12 @@ gatsby-telemetry@^1.1.56:
     stack-utils "1.0.2"
     uuid "3.4.0"
 
-gatsby-transformer-sharp@^2.3.18:
-  version "2.3.18"
-  resolved "https://registry.yarnpkg.com/gatsby-transformer-sharp/-/gatsby-transformer-sharp-2.3.18.tgz#fca5a444ca46d565a98d82088c31292bab83955b"
-  integrity sha512-6jMsaClslgLw4ZuaqVe/mRFIH1X9q2Xo3+sVAbnSnyoPTqv79U4vChtuVr8t6SB/T7Lc8gdA1RmCInQlxqTWzg==
+gatsby-transformer-sharp@^2.3.19:
+  version "2.3.19"
+  resolved "https://registry.yarnpkg.com/gatsby-transformer-sharp/-/gatsby-transformer-sharp-2.3.19.tgz#a6bfc93ec9070fef9a8e97bf839ccc193fa26b0e"
+  integrity sha512-V3OoG9R0k+dUcJiHoI3miHrmW2kcTj8FD4GT3XZHXmpoJNIUJ/2a78+O0m6Px/3F8EzafGo35id4fFhLePZdsw==
   dependencies:
-    "@babel/runtime" "^7.7.6"
+    "@babel/runtime" "^7.8.7"
     bluebird "^3.7.2"
     fs-extra "^8.1.0"
     potrace "^2.1.2"