ci: update vercel ci (#294)

Update vercel.yml

Author: rafaelcr

.github/workflows/vercel.yml

@@ -15,13 +15,6 @@ jobs:
   vercel:
     runs-on: ubuntu-latest
 
-    environment:
-      name: ${{ github.ref_name == 'master' && 'Production' || 'Preview' }}
-      url: ${{ github.ref_name == 'master' && 'https://token-metadata-api.vercel.app/' || 'https://token-metadata-api-pbcblockstack-blockstack.vercel.app/' }}
-
-    env:
-      PROD: ${{ github.ref_name == 'master' }}
-
     steps:
       - uses: actions/checkout@v2
         with:
@@ -32,35 +25,21 @@ jobs:
         with:
           node-version-file: '.nvmrc'
 
-      - name: Cache node modules
-        uses: actions/cache@v2
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: |
-            ~/.npm
-            **/node_modules
-          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: Install deps
         run: npm ci --audit=false
 
       - name: Install Vercel CLI
         run: npm install --global vercel@latest
 
       - name: Pull Vercel environment information
-        run: vercel pull --yes --environment=${{ env.PROD && 'production' || 'preview' }} --token=${{ secrets.VERCEL_TOKEN }}
+        run: vercel pull --yes --environment=${{ github.ref_name == 'master' && 'production' || 'preview' }} --token=${{ secrets.VERCEL_TOKEN }}
 
       - name: Build project artifacts
-        run: vercel build ${{ env.PROD && '--prod' || '' }} --token=${{ secrets.VERCEL_TOKEN }}
+        run: vercel build ${{ github.ref_name == 'master' && '--prod' || '' }} --token=${{ secrets.VERCEL_TOKEN }}
 
       - name: Deploy project artifacts to Vercel
         id: deploy
-        run: vercel ${{ env.PROD && '--prod' || 'deploy' }} --prebuilt --token=${{ secrets.VERCEL_TOKEN }} | awk '{print "deployment_url="$1}' >> $GITHUB_OUTPUT
+        run: vercel ${{ github.ref_name == 'master' && '--prod' || 'deploy' }} --prebuilt --token=${{ secrets.VERCEL_TOKEN }} | awk '{print "deployment_url="$1}' >> $GITHUB_OUTPUT
 
       - name: Trigger docs.hiro.so deployment
         if: github.ref_name == 'master'