chore: replace manual publish with release-please (#772)

Author: mshima

.github/workflows/publish.yml

@@ -0,0 +1,66 @@
+name: Release Please
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    outputs:
+      releases_created: ${{ steps.release.outputs.releases_created }}
+      paths_released: ${{ steps.release.outputs.paths_released }}
+      prs_created: ${{ steps.release.outputs.prs_created }}
+      head_branch: ${{ fromJson(steps.release.outputs.pr || '{}').headBranchName }}
+    steps:
+      - uses: googleapis/release-please-action@45996ed1f6d02564a971a2fa1b5860e934307cf7 # v5.0.0
+        id: release
+
+  prettify-pr:
+    runs-on: ubuntu-latest
+    needs: release-please
+    if: ${{ needs.release-please.outputs.prs_created == 'true' }}
+    continue-on-error: true
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          ref: ${{ needs.release-please.outputs.head_branch }}
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 'lts/*'
+      - run: npm install
+      - run: npx prettier --write .
+      - name: Fix prettier on Release PR
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add .
+          git commit -m "chore: fix code style issues"
+          git push origin
+
+  publish:
+    runs-on: ubuntu-latest
+    needs: release-please
+    if: ${{ needs.release-please.outputs.releases_created == 'true' }}
+    permissions:
+      contents: read
+      id-token: write # Required for npm provenance
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 'lts/*'
+          registry-url: 'https://registry.npmjs.org'
+      - run: npm install
+      - run: npm test
+      - name: Publish with provenance
+        run: npm publish --provenance --access public

.github/workflows/release-please.yml

@@ -0,0 +1,3 @@
+{
+  ".": "6.0.1"
+}

.github/workflows/release-version-pr.yml

@@ -0,0 +1,8 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "release-type": "node",
+  "include-component-in-tag": false,
+  "packages": {
+    ".": {}
+  }
+}