ci: update publish.yml

Author: zardoy

.github/workflows/publish.yml

@@ -13,8 +13,9 @@ jobs:
             fetch-depth: 0
         - uses: actions/setup-node@v2
           with:
-            node-version: 14
-        - run: yarn install
+            node-version: 12
+        - run: npm i -g pnpm
+        - run: pnpm i
         - run: npx semantic-release --branches main
           env:
             GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}