Fix workflow for build and release

.github/workflows/build.yml

@@ -0,0 +1,24 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ${{matrix.os}}
+    strategy:
+      matrix:
+        node_version: [8, 10, 12]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          version: ${{matrix.node_version}}
+      - run: npm ci
+      - run: npm test

.github/workflows/publish.yml → .github/workflows/release.yml

@@ -1,21 +1,12 @@
+name: Release
+
 on:
-  push:
-    branches:
-      - master
+  release:
+    tags:
+      - published
 
 jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v1
-      - uses: actions/setup-node@v1
-        with:
-          node-version: 12
-      - run: npm ci
-      - run: npm test
-
   publish:
-    needs: build
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1