fix(deps): update gatsby monorepo (#1520)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

packages/gatsby-theme-mdx/package.json

@@ -32,16 +32,16 @@
     "@rebass/emotion": "3.2.0",
     "@theme-ui/components": "^0.3.1",
     "@theme-ui/preset-system": "0.3.0",
-    "gatsby-plugin-catch-links": "2.3.11",
+    "gatsby-plugin-catch-links": "2.10.0",
     "gatsby-plugin-compile-es6-packages": "2.1.0",
-    "gatsby-plugin-emotion": "4.3.10",
+    "gatsby-plugin-emotion": "4.5.0",
     "gatsby-plugin-fathom": "1.3.0",
     "gatsby-plugin-google-fonts": "1.0.1",
     "gatsby-plugin-mdx": "^1.2.0",
-    "gatsby-plugin-page-creator": "2.3.17",
-    "gatsby-plugin-react-helmet": "3.3.10",
+    "gatsby-plugin-page-creator": "2.10.1",
+    "gatsby-plugin-react-helmet": "3.10.0",
     "gatsby-plugin-theme-ui": "0.3.0",
-    "gatsby-source-filesystem": "2.3.19",
+    "gatsby-source-filesystem": "2.11.1",
     "is-absolute-url": "3.0.3",
     "lodash.flatten": "4.4.0",
     "prism-react-renderer": "1.1.1",