chore(workflow): bump setup-node and fix minimal node version (#529)

Author: RomainCoudour

.github/workflows/build.yml

@@ -7,6 +7,9 @@ on:
       - beta
   pull_request:
 
+env:
+  NODE_VERSION: 12.13.0
+
 jobs:
   lint:
     name: Linting
@@ -18,7 +21,9 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
+        with:
+          node-version: ${{ env.NODE_VERSION }}
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn config get cacheFolder)"
@@ -73,9 +78,9 @@ jobs:
       - uses: actions/checkout@v2
         with:
           persist-credentials: false # GITHUB_TOKEN must not be set for the semantic release
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
-          node-version: 12.13.0
+          node-version: ${{ env.NODE_VERSION }}
       - uses: actions/cache@v2
         with:
           path: '**/node_modules'