chore(deps): update dependency @octokit/rest to v21 #1039

Job	Run time
Prepare npm package	31s
Test npm install - Node.js ubuntu-latest 22.x	8s
Test npx - Node.js ubuntu-latest 22.x	9s
Test npm install - Node.js windows-latest 22.x	1m 22s
Test npx - Node.js windows-latest 22.x	1m 21s
Test npm install - Node.js macos-latest 22.x	12s
Test npx - Node.js macos-latest 22.x	9s
Test npm install - Node.js ubuntu-latest 20.x	8s
Test npx - Node.js ubuntu-latest 20.x	11s
Test npm install - Node.js windows-latest 20.x	1m 3s
Test npx - Node.js windows-latest 20.x	51s
Test npm install - Node.js macos-latest 20.x	13s
Test npx - Node.js macos-latest 20.x	11s
Test npm install - Node.js ubuntu-latest 18.x	12s
Test npx - Node.js ubuntu-latest 18.x	10s
Test npm install - Node.js windows-latest 18.x	1m 32s
Test npx - Node.js windows-latest 18.x	1m 53s
Test npm install - Node.js macos-latest 18.x	12s
Test npx - Node.js macos-latest 18.x	21s
	10m 49s

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