ci: add pipeline for Bun (#6023)

Co-authored-by: Jon Church <me@jonchurch.com>

.github/workflows/ci-bun.yml

@@ -0,0 +1,34 @@
+name: CI Bun
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  test:
+    name: Bun CI
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        bun-version: [1.0.0, 1.1.0, 1.2.0, 1.3.0]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: ${{ matrix.bun-version }}
+
+      # TODO: Remove this step once the lockfile has been updated to v3 in the repository
+      - name: Install npm dependencies (lockfile v3)
+        run: npm i --lockfile-version 3 --package-lock-only
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Run validate
+        run: bun run validate