chore: upgraded node LTS

[Pugma]

User description

traPtitech/traPortfolio-UI#265 同様

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PR Type

enhancement

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Description

• Node.jsのバージョンを22.12.0にアップグレード

• Dockerfile内のNode.jsイメージを更新

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Changes walkthrough 📝

	Relevant files
Enhancement	.node-version Node.jsバージョンを更新                                                                                    .node-version Node.jsのバージョンを22.11.0から22.12.0に更新 +1/-1      Dockerfile DockerfileのNode.jsイメージを更新                                                                Dockerfile Node.jsイメージを20.11.1-alpineから22.12.0-alpineに更新 +1/-1

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[github-actions]

PR Reviewer Guide 🔍

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⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Version Update Ensure that all dependencies and configurations are compatible with Node.js version 22.12.0, as this update might introduce breaking changes or require adjustments. FROM --platform=$BUILDPLATFORM node:22.12.0-alpine AS build

[github-actions]

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[sh0go07]

UI の方と同じく！
よさそうです！