Add changesets and CI

Author: lorisleiva

.changeset/README.md

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+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets)
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

.changeset/config.json

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+{
+  "$schema": "https://unpkg.com/@changesets/[email protected]/schema.json",
+  "changelog": [
+    "@changesets/changelog-github",
+    { "repo": "codama-idl/renderers-demo" }
+  ],
+  "commit": false,
+  "access": "public",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch"
+}

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: 'npm'
+    directory: '/'
+    schedule:
+      interval: daily
+      time: '01:00'
+      timezone: America/Los_Angeles
+    open-pull-requests-limit: 10

.github/workflows/main.yml

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+name: Main
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+env:
+  # Among other things, opts out of Turborepo telemetry. See https://consoledonottrack.com/.
+  DO_NOT_TRACK: '1'
+  NODE_VERSION: 20
+  SOLANA_VERSION: 2.1.9
+
+jobs:
+  lint:
+    name: Check styling
+    runs-on: ubuntu-latest
+    steps:
+      - name: Git checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v3
+
+      - name: Setup Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Compile JS and types
+        run: pnpm run build
+
+      - name: Check linting
+        run: pnpm run lint
+
+  tests:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Git checkout
+        uses: actions/checkout@v4
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v3
+
+      - name: Setup Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Build and run tests
+        run: pnpm build && pnpm test
+
+      - name: Ensure working directory is clean
+        run: |
+          git status
+          test -z "$(git status --porcelain)"
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+    needs: [lint, tests]
+    permissions:
+      contents: write
+      pull-requests: write
+    outputs:
+      published: ${{ steps.changesets.outputs.published }}
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v3
+
+      - name: Setup Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: 'pnpm'
+
+      - name: Install Dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Create Release Pull Request or Publish
+        id: changesets
+        uses: changesets/action@v1
+        with:
+          commit: 'Publish package'
+          title: 'Publish package'
+          publish: pnpm build && pnpm changeset publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+  dependabot:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request' && github.event.pull_request.user.login == 'dependabot[bot]' && github.repository == 'codama-idl/renderers-demo'
+    needs: [lint, tests]
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Auto-approve the PR
+        run: gh pr review --approve "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Enable auto-merge
+        run: gh pr merge --auto --squash "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}