Bump ipywidgets from 7.7.2 to 8.1.8 #18600

Job	Run time
Build VSIX	1m 20s
Lint	1m 59s
cancel_previous_runs	6s
Type Script Tests (ubuntu-latest, ts-unit)	56s
Type Script Tests (windows-latest, ts-unit)	6m 5s
Tests (raw, conda, 3.10, ^[^@]+$\|@mandatory\|@python, ubuntu-latest)	6m 54s
Tests (raw, python, 3.10, @iw, ubuntu-latest)	16m 39s
Tests (raw, python, 3.10, ^[^@]+$\|@mandatory\|@kernelCore\|@python\|@jupyter, ubuntu-latest)	57m 27s
Tests (remote, python, 3.10, prerelease, ^[^@]+$\|@mandatory, ubuntu-latest)	5m 45s
Tests (raw, python, 3.10, @webview\|@export\|@lsp\|@variableViewer, ubuntu-latest)	15m 30s
Tests (raw, python, 3.10, @widgets, ubuntu-latest, 7)	9m 16s
Tests (raw, python, 3.10, ^[^@]+$\|@mandatory, windows-latest)	9m 3s
Tests (web, python, 3.10, ^[^@]+$\|@mandatory, ubuntu-latest)	3m 36s
Tests (remote, python, 3.10, ^[^@]+$\|@mandatory, ubuntu-latest)	10m 36s
Tests (raw, python, 3.10, prerelease, ^[^@]+$\|@mandatory\|@kernelCore\|@python\|@jupyter\|@widgets, u...	1h 2m 43s
Tests (raw, python, 3.10, @widgets, ubuntu-latest)	5m 5s
Tests (remote, python, 3.10, @kernelCore, ubuntu-latest)	12m 8s
Tests (raw, noPython, @nonPython, ubuntu-latest)	3m 36s
Tests (raw, python, 3.10, @debugger, ubuntu-latest)	5m 34s
Tests (remote, python, 3.10, @widgets, ubuntu-latest)	33m 32s
Smoke tests (ubuntu-latest, 3.10)	1m 58s
Smoke tests (macos-latest, 3.10)	3m 31s
Smoke tests (windows-latest, 3.10)	3m 4s
	4h 36m 23s

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