prepare major release

.changeset/chilled-pugs-knock.md

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+---
+'neverthrow': major
+---
+
+Declare the minimum supported Node.js version
+
+`Neverthrow` does not depend on any Node.js version-specific features, so it should work with any version of Node.js that supports ES6 and other runtimes like Browser, Deno, etc.
+
+However, for the sake of maintaining a consistent development environment, we should declare the minimum supported version of Node.js in the `engines` field of the `package.json` file.
+

.changeset/config.json

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+{
+  "$schema": "https://unpkg.com/@changesets/config@3.0.0/schema.json",
+  "changelog": [
+    "@changesets/changelog-github",
+    {
+      "repo": "supermacro/neverthrow"
+    }
+  ],
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "public",
+  "baseBranch": "master",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    branches:
+      - master
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+jobs:
+  create_pr:
+    name: Release
+    runs-on: ubuntu-latest
+    outputs:
+      hasChangesets: ${{ steps.changesets.outputs.hasChangesets }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: 'npm'
+
+      - run: npm i
+
+      - name: Create Release Pull Request
+        id: changesets
+        uses: changesets/action@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  release:
+    needs: create_pr
+    if: needs.create_pr.outputs.hasChangesets == 'false'
+    runs-on: ubuntu-latest
+    environment: deploy
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: 'npm'
+
+      - run: npm i
+
+      - name: Release
+        run: npm run release
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}