Added missing CI step for prs and master push (#50)

* added a build step to prs and pushed commits

* upgraded publishing node version to LTS

* added name to node setup

.github/workflows/build.yml

@@ -0,0 +1,34 @@
+name: Build library
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [12, 14]
+    steps:
+      - uses: actions/checkout@master
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+          registry-url: https://registry.npmjs.org/
+      - name: Compile typescript
+        run: npm run build

.github/workflows/publish.yml

@@ -11,8 +11,8 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
           registry-url: https://registry.npmjs.org/
       - run: npm publish --unsafe-perm
         env:
-          NODE_AUTH_TOKEN: ${{secrets.NPM_SECRET}}
+          NODE_AUTH_TOKEN: ${{secrets.NPM_SECRET}}