Revert "ENG-219: Add npm caching to CI workflows"

This reverts commit 6f8e6c4.

Author: d4mation

.github/workflows/lint.yml

@@ -8,7 +8,6 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 20
-          cache: 'npm'
       - run: npm ci
       - run: npm run lint
       - name: Typecheck

.github/workflows/tests.yml

@@ -11,7 +11,6 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
-          cache: 'npm'
       - run: npm ci
       - run: npm run build
       - name: Setup git