ci: add actions

.github/workflows/build.yaml

@@ -0,0 +1,77 @@
+name: build
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test-old:
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name != 'pull_request' || github.repository_owner != github.event.pull_request.head.repo.owner.login }}
+
+    strategy:
+      fail-fast: false
+      matrix: 
+        node: 
+          - 18.x
+          - 16.x
+          - 14.x
+          - 12.x
+          - 10.x
+          - 8.x
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@1d96c772d19495a3b5c517cd2bc0cb401ea0529f # v4.1.3
+        with:
+          show-progress: false
+
+      - name: install pnpm
+        run: curl -fsSL https://get.pnpm.io/install.sh | sh -
+
+      - name: Setup node
+        uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4.0.2
+        with:
+          node-version: ${{ matrix.node }}
+          cache: pnpm
+
+      - name: Install project
+        run: pnpm install --frozen-lockfile
+
+      - name: test
+        run: pnpm test
+
+
+  test:
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name != 'pull_request' || github.repository_owner != github.event.pull_request.head.repo.owner.login }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@1d96c772d19495a3b5c517cd2bc0cb401ea0529f # v4.1.3
+        with:
+          show-progress: false
+
+      - name: enable corepack
+        run: corepack enable
+
+      - name: Setup node
+        uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4.0.2
+        with:
+          node-version-file: .node-version
+          cache: pnpm
+
+      - name: enable corepack
+        run: corepack enable
+
+      - name: Install project
+        run: pnpm install --frozen-lockfile
+
+      - name: test
+        run: pnpm test

.node-version

@@ -0,0 +1 @@
+20.12.2