Bump Node.js version

[ikhoon]

Motivation:

I observed that :docs-client:npmInstall failed frequently. https://github.com/line/armeria/actions/runs/12268833874/job/34231348528?pr=5941#step:9:1028

I don't know the root cause, but it would be worth upgrading to the latest version.
https://nodejs.org/en/about/previous-releases#looking-for-latest-release-of-a-version-branch

Modifications:

• Node.js 22.3.0 -> 22.10.0
• NPM 10.8.1 -> 10.9.0

Result:

Fix the failure of npm install

[github-actions]

🔍 Build Scan® (commit: 1e99962)

Job name	Status	Build Scan®
build-ubicloud-standard-8-jdk-8	✅	https://ge.armeria.dev/s/77cyq4hw6lvzm
build-ubicloud-standard-8-jdk-21-snapshot-blockhound	✅	https://ge.armeria.dev/s/2dk475yvvn4ga
build-ubicloud-standard-8-jdk-17-min-java-17-coverage	✅	https://ge.armeria.dev/s/u5wk6gqpyypb6
build-ubicloud-standard-8-jdk-17-min-java-11	✅	https://ge.armeria.dev/s/vefbfz5lg63ls
build-ubicloud-standard-8-jdk-17-leak	✅	https://ge.armeria.dev/s/xtem5h3nxwukq
build-ubicloud-standard-8-jdk-11	❌ (failure)	https://ge.armeria.dev/s/pdmteiz4ljn7c
build-macos-latest-jdk-21	✅	https://ge.armeria.dev/s/fxezwifibbddw