fix(ci): install pnpm on integration tests

Author: lucasfernog

.github/workflows/covector-version-or-publish.yml

@@ -23,6 +23,8 @@ jobs:
         with:
           fetch-depth: 0
 
+      - run: corepack enable
+
       - name: install stable
         uses: dtolnay/rust-toolchain@stable