build: add lto build to CI

.github/workflows/misc.yml

@@ -32,3 +32,21 @@ jobs:
           path: out/doc
       - name: Test
         run: NODE=$(command -v node) make test-doc-ci TEST_CI_ARGS="-p actions"
+
+  build-lto:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    container: gcc:11
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+      - name: Environment Information
+        run: npx envinfo
+      - name: Build lto
+        run: |
+          apt update && apt install ninja-build python-is-python3 -y
+          ./configure --enable-lto --ninja
+          ninja -C out/Release