revert mdx bump to resolve vercel build errors

yarn.lock

@@ -1814,42 +1814,48 @@
     read-yaml-file "^1.1.0"
 
 "@mdx-js/loader@next":
-  version "2.0.0-rc.1"
-  resolved "https://registry.yarnpkg.com/@mdx-js/loader/-/loader-2.0.0-rc.1.tgz#56588fc0ab8ab85cea24a2589f6ea34c1e89d1c5"
-  integrity sha512-qAwpcpa7lxovWONlBRYMmCWJti7PstIQQ7gAhXvHGDsIp8I/tJiCLNIE9/KTXCsN8TJoMoOoSxzxYToKtvYAUw==
+  version "2.0.0-next.9"
+  resolved "https://registry.yarnpkg.com/@mdx-js/loader/-/loader-2.0.0-next.9.tgz#46b9cc1db2f51f89ac230e40156edc70a2bbae3f"
+  integrity sha512-5hFaFs1w1Rq4XnVRg8n2NHn2dBgYfitJHSNZzC9K8YTAxcKAeIGgna8HK/e8SrGr/8HWC8DJ+shoo0k8U1z2ig==
   dependencies:
-    "@mdx-js/mdx" "^2.0.0-rc.1"
+    "@mdx-js/mdx" "2.0.0-next.9"
+    "@mdx-js/react" "2.0.0-next.9"
     loader-utils "^2.0.0"
-    source-map "^0.7.0"
 
-"@mdx-js/mdx@^2.0.0-rc.1":
-  version "2.0.0-rc.1"
-  resolved "https://registry.yarnpkg.com/@mdx-js/mdx/-/mdx-2.0.0-rc.1.tgz#ae0e8ce3499dac5cffff1d4cef57dc9cefba67e5"
-  integrity sha512-RMq9uNEDD0XfLcshTeiFX+jkbOyqZucodVDM6xg/mZtLiVeJyz+7K5URpRViWUG97F553mEdyLk/9v9cr4+0DA==
-  dependencies:
-    "@types/estree-jsx" "^0.0.1"
-    "@types/mdx" "^2.0.0"
-    astring "^1.6.0"
-    estree-util-build-jsx "^2.0.0"
-    estree-util-is-identifier-name "^2.0.0"
-    estree-walker "^3.0.0"
-    hast-util-to-estree "^2.0.0"
-    markdown-extensions "^1.0.0"
-    periscopic "^3.0.0"
-    remark-mdx "^2.0.0-rc.1"
-    remark-parse "^10.0.0"
-    remark-rehype "^10.0.0"
-    unified "^10.0.0"
-    unist-util-position-from-estree "^1.0.0"
-    unist-util-stringify-position "^3.0.0"
-    unist-util-visit "^4.0.0"
-    vfile "^5.0.0"
+"@mdx-js/mdx@2.0.0-next.9":
+  version "2.0.0-next.9"
+  resolved "https://registry.yarnpkg.com/@mdx-js/mdx/-/mdx-2.0.0-next.9.tgz#6af5bf5d975ceccd11d31b4b7f180b2205c7bcfa"
+  integrity sha512-6i7iLIPApiCdvp4T6n3dI5IqDOvcNx4M3DUJ+AG6xj/NTssJcf5r3Gl4i3Q2tqJp0JAj6bWQ3IOLAefF18Y48g==
+  dependencies:
+    "@mdx-js/util" "2.0.0-next.1"
+    astring "^1.4.0"
+    detab "^2.0.0"
+    estree-walker "^2.0.0"
+    hast-util-to-estree "^1.1.0"
+    mdast-util-to-hast "^10.1.0"
+    periscopic "^2.0.0"
+    rehype-minify-whitespace "^4.0.0"
+    remark-mdx "2.0.0-next.9"
+    remark-parse "^9.0.0"
+    remark-squeeze-paragraphs "^4.0.0"
+    unified "^9.2.0"
+    unist-builder "^2.0.0"
+
+"@mdx-js/react@2.0.0-next.9":
+  version "2.0.0-next.9"
+  resolved "https://registry.yarnpkg.com/@mdx-js/react/-/react-2.0.0-next.9.tgz#a269c2e2ecd86490e664fef789ae0d795e6ee509"
+  integrity sha512-ZHEwW79zXQrII6ZSaIDgxd80IDRB6Zg/2N1IivQ62j4qlAZd78rbbAc0BQKwADYpuFg96g0pFbuZ7/+vl1gR6A==
 
 "@mdx-js/react@^1.6.22":
   version "1.6.22"
   resolved "https://registry.yarnpkg.com/@mdx-js/react/-/react-1.6.22.tgz#ae09b4744fddc74714ee9f9d6f17a66e77c43573"
   integrity sha512-TDoPum4SHdfPiGSAaRBw7ECyI8VaHpK8GJugbJIJuqyh6kzw9ZLJZW3HGL3NNrJGxcAixUvqROm+YuQOo5eXtg==
 
+"@mdx-js/util@2.0.0-next.1":
+  version "2.0.0-next.1"
+  resolved "https://registry.yarnpkg.com/@mdx-js/util/-/util-2.0.0-next.1.tgz#b17a046ed5cb1b13e75b29740504ec53a7e0b016"
+  integrity sha512-F36kWTFdFXrbNIsM77dhVwYZsZonUIKHkYyYgnuw1NWskBfEn1ET5B5Z5mm58ckKNf7SimchnxR9sKCCtH38WA==
+
 "@mrmlnc/readdir-enhanced@^2.2.1":
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz#524af240d1a360527b730475ecfa1344aa540dde"