build(deps): bump gatsby-transformer-remark from 2.6.39 to 2.6.42

yarn.lock

@@ -8562,13 +8562,13 @@ gatsby-telemetry@^1.1.44:
     uuid "3.3.3"
 
 gatsby-transformer-remark@^2.6.33:
-  version "2.6.39"
-  resolved "https://registry.yarnpkg.com/gatsby-transformer-remark/-/gatsby-transformer-remark-2.6.39.tgz#37d65a1e4c0ca6105db31eeb9fec9ce9e4ced13a"
-  integrity sha512-l8xdIT4xcBorph5h4WmOXIdt1cSdfFJo9mcl6LHC2Pt3qkzhY5b2zZi5dZtxAcqOQz7I61nwARknnNkN+6w5PA==
+  version "2.6.42"
+  resolved "https://registry.yarnpkg.com/gatsby-transformer-remark/-/gatsby-transformer-remark-2.6.42.tgz#c1a571fdca2c6d8e3527df3b56709b46c7b8e8d8"
+  integrity sha512-GJtzLU0jSNrKUTrkaXRzfXLNP4i6bPtfaJadr33FhP1FPDBGw8O0OQ3/tekM/z3Tjb6/1hL3BebPyuQ15yWI/A==
   dependencies:
-    "@babel/runtime" "^7.7.4"
-    bluebird "^3.7.1"
-    gatsby-core-utils "^1.0.22"
+    "@babel/runtime" "^7.7.6"
+    bluebird "^3.7.2"
+    gatsby-core-utils "^1.0.24"
     gray-matter "^4.0.2"
     hast-util-raw "^4.0.0"
     hast-util-to-html "^4.0.1"