Fix/CI: modify GitHub Workflow for setting Function BaseURL

Author: gitgitWi

.github/workflows/firebase-hosting-merge.yml

@@ -6,11 +6,23 @@ name: Deploy to Firebase Hosting on merge
   push:
     branches:
       - main
+env:
+  VUE_APP_SECTORS_FUNCTION_BASEURL: "${{ secrets.VUE_APP_SECTORS_FUNCTION_BASEURL }}"
 jobs:
   build_and_deploy:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - name: Cache
+        uses: actions/cache@v2.1.6
+        with:
+          path: ~/.yarn
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: ${{ runner.os }}-node-
+      - name: Use Node.js
+        uses: actions/setup-node@v2.4.1
+        with:
+          node-version: "14.x"
       - run: echo "VUE_APP_LAST_BUILD=$(TZ="Asia/Seoul" date +'%Y-%m-%d %H:%M')" >> $GITHUB_ENV && echo $VUE_APP_LAST_BUILD
       - run: yarn install --frozen-lockfile --production && yarn build
       - uses: FirebaseExtended/action-hosting-deploy@v0