Ensure streamed outputs are added to the right cell #17598

Job	Run time
cancel_previous_runs	3s
Build VSIX	1m 31s
Lint	1m 11s
Type Script Tests (ubuntu-latest, ts-unit)	1m 23s
Type Script Tests (windows-latest, ts-unit)	5m 32s
Tests (raw, python, 3.10, ^[^@]+$\|@mandatory\|@kernelCore\|@python\|@jupyter, ubuntu-latest)	6m 43s
Tests (raw, python, 3.10, @widgets, ubuntu-latest)	5m 43s
Tests (raw, python, 3.10, @iw, ubuntu-latest)	3m 49s
Tests (raw, python, 3.10, @webview\|@export\|@lsp\|@variableViewer, ubuntu-latest)	4m 27s
Tests (raw, python, 3.10, @debugger, ubuntu-latest)	3m 33s
Tests (remote, python, 3.10, ^[^@]+$\|@mandatory, ubuntu-latest)	5m 24s
Tests (web, python, 3.10, ^[^@]+$\|@mandatory, ubuntu-latest)	3m 44s
Tests (raw, python, 3.10, ^[^@]+$\|@mandatory, windows-latest)	9m 7s
Tests (raw, python, 3.10, @widgets, ubuntu-latest, 8)	4m 32s
Tests (remote, python, 3.10, @widgets, ubuntu-latest, 8)	5m 46s
Tests (raw, conda, 3.10, ^[^@]+$\|@mandatory\|@python, ubuntu-latest)	4m 33s
Tests (raw, noPython, @nonPython, ubuntu-latest)	1m 56s
Tests (remote, python, 3.10, @kernelCore, ubuntu-latest)	5m 6s
Smoke tests (ubuntu-latest, 3.10)	1m 34s
Smoke tests (windows-latest, 3.10)	3m 40s
Smoke tests (macos-latest, 3.10)	2m 3s
	1h 21m 20s

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