chore: remove pnpm cache

Author: antfu

.github/workflows/ci.yml

@@ -19,7 +19,6 @@ jobs:
         uses: actions/setup-node@v2
         with:
           node-version: 16.x
-          cache: pnpm
 
       - run: corepack enable
 
@@ -48,7 +47,6 @@ jobs:
         uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node }}
-          cache: pnpm
 
       - run: corepack enable