Update xterm.js

Fixes #51615
Fixes #49935

package.json

@@ -49,7 +49,7 @@
     "vscode-nsfw": "1.0.17",
     "vscode-ripgrep": "^1.0.1",
     "vscode-textmate": "^3.3.3",
-    "vscode-xterm": "3.5.0-beta8",
+    "vscode-xterm": "3.5.0-beta9",
     "yauzl": "^2.9.1"
   },
   "devDependencies": {

yarn.lock

@@ -6223,9 +6223,9 @@ vscode-textmate@^3.3.3:
     fast-plist "^0.1.2"
     oniguruma "^6.0.1"
 
-vscode-xterm@3.5.0-beta8:
-  version "3.5.0-beta8"
-  resolved "https://registry.yarnpkg.com/vscode-xterm/-/vscode-xterm-3.5.0-beta8.tgz#beaf158e00ce8341caa18703b3d1ed18be78b676"
+vscode-xterm@3.5.0-beta9:
+  version "3.5.0-beta9"
+  resolved "https://registry.yarnpkg.com/vscode-xterm/-/vscode-xterm-3.5.0-beta9.tgz#09e726876d12c0bac0f7a35763b98433f06ab1b4"
 
 vso-node-api@^6.1.2-preview:
   version "6.1.2-preview"