chore: cache dependencies

.github/workflows/build.yml

@@ -10,12 +10,30 @@ jobs:
         uses: actions/checkout@v2
         with:
           persist-credentials: false
+      
+      - name: Set up node
+        uses: actions/setup-node@v2-beta
+        with:
+          node-version: '12'
+          check-latest: true
+      
+      - name: Cache node modules
+        uses: actions/cache@v2
+        id: cache
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+      
+      - name: Install dependencies
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: npm install
 
-      - name: Install and Build
-        run: |
-          npm install
+      - name: Build
+        run:
           npm run build
-
+      
       - name: Deploy
         uses: JamesIves/github-pages-deploy-action@3.7.1
         with:

.gitignore

@@ -25,7 +25,6 @@ yarn-debug.log*
 yarn-error.log*
 
 dist
-package-lock.json
 lib
 
 node_modules