test

`Object.groupBy` の説明中の脱字を修正 #2034

Job	Run time
E2E	1m 19s
Test on Node.js 20	57s
Build on Node.js: 20 OS: macOS-latest	25s
Test on Node.js 22.5.1	1m 0s
Build on Node.js: 20 OS: windows-latest	1m 58s
Build on Node.js: 20 OS: ubuntu-latest	25s
	6m 4s

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