Running into unknown text editor errors for IW in CI

[DonJayamanne]

I haven't seen these in the past.
I think there may be a regression in Core.

@amunger /cc
https://github.com/microsoft/vscode-jupyter/actions/runs/20449161562/job/58758502337

 2) Interactive window execution @iw
       Dispose test:

      Error: unknown text editor: 1b92e47b-5f50-4152-989f-49cd0cf8e4e4. known editors:  
      + expected - actual


      at Vd.getEditorById (file:///home/runner/work/vscode-jupyter/vscode-jupyter/.vscode-test/vscode-linux-x64-insiders/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:213:5567)
      at NM.convert (file:///home/runner/work/vscode-jupyter/vscode-jupyter/.vscode-test/vscode-linux-x64-insiders/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:144:137542)
      at i.registerCommand.description (file:///home/runner/work/vscode-jupyter/vscode-jupyter/.vscode-test/vscode-linux-x64-insiders/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:116:40112)
      at vA.h (file:///home/runner/work/vscode-jupyter/vscode-jupyter/.vscode-test/vscode-linux-x64-insiders/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:116:41740)
      at InteractiveWindowProvider.createEditor (out/interactive-window/interactiveWindowProvider.js:6915:37)
      at InteractiveWindowProvider.create (out/interactive-window/interactiveWindowProvider.js:6858:62)
      at InteractiveWindowProvider.getOrCreate (out/interactive-window/interactiveWindowProvider.js:6831:16)
      at Context.<anonymous> (src/test/datascience/interactiveWindow.vscode.common.test.ts:234:35)