chore: upgraded node LTS

[Pugma]

User description

新年早々、このリポジトリの Pull Request 初めでございます

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PR Type

enhancement

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Description

• Node.js version updated from 20.11.1 to 22.12.0.

• Updated .node-version file to reflect new version.

• Updated Dockerfile to use 22.12.0-alpine Node.js base image.

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Changes walkthrough 📝

	Relevant files
Enhancement	.node-version Updated Node.js version in `.node-version` file                    .node-version Updated Node.js version from 20.11.1 to 22.12.0. +1/-1      Dockerfile Updated Node.js version in Dockerfile                                        Dockerfile Updated Node.js base image version to 22.12.0-alpine. +1/-1

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[github-actions]

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[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ 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 the updated Node.js version 22.12.0. 22.12.0 Docker Image Update Confirm that the new Node.js base image 22.12.0-alpine does not introduce any compatibility or performance issues. FROM --platform=$BUILDPLATFORM node:22.12.0-alpine AS build

[github-actions]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Score
General	新しいNode.jsバージョンが依存関係やビルドプロセスと互換性があるか確認する。 環境の互換性を確保するために、node:22.12.0-alpineイメージがプロジェクトの依存関係やビルドプロセスと互換性があるか確認してください。 Dockerfile [1] +FROM --platform=$BUILDPLATFORM node:22.12.0-alpine AS build - Suggestion importance[1-10]: 5 Why: The suggestion to verify compatibility with the new Node.js version is valid and important for ensuring the build process and dependencies function correctly. However, it is not actionable as it only advises verification without proposing a concrete code change.	5

[sh0go07]

リリースノートみました！
良さそう！