Upgrade codemirror to v6 (#18524)

Co-authored-by: fisker <lionkay@gmail.com>

.github/renovate.json5

@@ -74,13 +74,17 @@
       groupName: "GitHub Actions",
       matchManagers: ["github-actions"],
     },
+    {
+      groupName: "Markdown dependencies",
+      matchPackageNames: ["micromark-*", "mdast-", "remark-", "unified"],
+    },
     {
       groupName: "Docusaurus",
       matchPackageNames: ["@docusaurus/*"],
     },
     {
-      groupName: "Markdown dependencies",
-      matchPackageNames: ["micromark-*", "mdast-", "remark-", "unified"],
+      groupName: "CodeMirror",
+      matchPackageNames: ["@codemirror/*", "cm6-graphql"],
     },
   ],
   ignoreDeps: [
@@ -90,6 +94,8 @@
     "prettier",
     // Old versions are required to test
     "node",
+    // Only pinned version works, https://github.com/prettier/prettier/pull/18524#issuecomment-3694806317
+    "@codemirror/view",
   ],
   ignorePaths: ["tests/**", "packages/**"],
 }