vscode-extensions.ms-toolsai.jupyter: patch to avoid writing to read-only store

pkgs/applications/editors/vscode/extensions/ms-toolsai.jupyter/default.nix

@@ -28,6 +28,9 @@ vscode-utils.buildVscodeMarketplaceExtension {
     EOF
     }
     jq "$(print_jq_query)" ./package.json | sponge ./package.json
+    # Add a link from temp to /tmp so that the extension gets a writable
+    # directory to write to.
+    ln -s /tmp temp
   '';
 
   meta = {