chore(gatsby-plugin-mdx): Upgrade MDX and snapshots (#26143)

Starting in version 1.6.16, the makeShortcode function
is only added to compiled MDX when it is needed. This
caused the gatsby-plugin-mdx snapshots to fall out of
date. MDX is no bumped to 1.6.16 with the snapshots
updated.

Related:

- #24595 (comment)
- mdx-js/mdx#1088

Author: johno

packages/gatsby-plugin-mdx/loaders/__snapshots__/mdx-loader.test.js.snap

@@ -7,17 +7,6 @@ import { mdx } from "@mdx-js/react";
 /* @jsx mdx */
 
 export const _frontmatter = {};
-
-const makeShortcode = (name) =>
-  function MDXDefaultShortcode(props) {
-    console.warn(
-      "Component " +
-        name +
-        " was not imported, exported, or provided by MDXProvider as global scope"
-    );
-    return <div {...props} />;
-  };
-
 const layoutProps = {
   _frontmatter,
 };
@@ -51,17 +40,6 @@ export const _frontmatter = {
   three: 4,
   array: [1, 2, 3],
 };
-
-const makeShortcode = (name) =>
-  function MDXDefaultShortcode(props) {
-    console.warn(
-      "Component " +
-        name +
-        " was not imported, exported, or provided by MDXProvider as global scope"
-    );
-    return <div {...props} />;
-  };
-
 const layoutProps = {
   _frontmatter,
 };
@@ -95,17 +73,6 @@ export const _frontmatter = {
   three: 4,
   array: [1, 2, 3],
 };
-
-const makeShortcode = (name) =>
-  function MDXDefaultShortcode(props) {
-    console.warn(
-      "Component " +
-        name +
-        " was not imported, exported, or provided by MDXProvider as global scope"
-    );
-    return <div {...props} />;
-  };
-
 const layoutProps = {
   _frontmatter,
 };
@@ -144,17 +111,6 @@ export const _frontmatter = {
   three: 4,
   array: [1, 2, 3],
 };
-
-const makeShortcode = (name) =>
-  function MDXDefaultShortcode(props) {
-    console.warn(
-      "Component " +
-        name +
-        " was not imported, exported, or provided by MDXProvider as global scope"
-    );
-    return <div {...props} />;
-  };
-
 const layoutProps = {
   meta,
   _frontmatter,
@@ -194,17 +150,6 @@ export const _frontmatter = {
   three: 4,
   array: [1, 2, 3],
 };
-
-const makeShortcode = (name) =>
-  function MDXDefaultShortcode(props) {
-    console.warn(
-      "Component " +
-        name +
-        " was not imported, exported, or provided by MDXProvider as global scope"
-    );
-    return <div {...props} />;
-  };
-
 const layoutProps = {
   meta,
   _frontmatter,
@@ -235,17 +180,6 @@ import { mdx } from "@mdx-js/react";
 /* @jsx mdx */
 
 export const _frontmatter = {};
-
-const makeShortcode = (name) =>
-  function MDXDefaultShortcode(props) {
-    console.warn(
-      "Component " +
-        name +
-        " was not imported, exported, or provided by MDXProvider as global scope"
-    );
-    return <div {...props} />;
-  };
-
 const layoutProps = {
   _frontmatter,
 };
@@ -280,17 +214,6 @@ export const meta = {
   author: "chris",
 };
 export const _frontmatter = {};
-
-const makeShortcode = (name) =>
-  function MDXDefaultShortcode(props) {
-    console.warn(
-      "Component " +
-        name +
-        " was not imported, exported, or provided by MDXProvider as global scope"
-    );
-    return <div {...props} />;
-  };
-
 const layoutProps = {
   meta,
   _frontmatter,
@@ -326,17 +249,6 @@ export const meta = {
   author: "chris",
 };
 export const _frontmatter = {};
-
-const makeShortcode = (name) =>
-  function MDXDefaultShortcode(props) {
-    console.warn(
-      "Component " +
-        name +
-        " was not imported, exported, or provided by MDXProvider as global scope"
-    );
-    return <div {...props} />;
-  };
-
 const layoutProps = {
   meta,
   _frontmatter,

packages/gatsby-plugin-mdx/package.json

@@ -56,8 +56,8 @@
     "unist-util-visit": "^1.4.1"
   },
   "devDependencies": {
-    "@mdx-js/mdx": "^1.6.6",
-    "@mdx-js/react": "^1.6.6",
+    "@mdx-js/mdx": "^1.6.16",
+    "@mdx-js/react": "^1.6.16",
     "jest": "^24.9.0",
     "js-combinatorics": "^0.5.5",
     "react-test-renderer": "^16.13.1"