Reintroduce yarn --frozen-lockfile

Signed-off-by: Luciano Resende <[email protected]>

Author: lresende

.github/workflows/build.yaml

@@ -37,7 +37,7 @@ jobs:
             /home/runner/.cache/Cypress
           key: ${{ runner.os }}-${{ hashFiles('**/yarn.lock') }}
       - name: Install
-        run: yarn install   # --frozen-lockfile
+        run: yarn install --frozen-lockfile
 
   lint:
     name: Lint