Simplify workflow by removing pnpm caching

Caching was causing issues - removing for now to get workflow functional

Co-Authored-By: Warp <agent@warp.dev>

Author: erinmikailstaples

.github/workflows/preview-deploy.yml

@@ -33,22 +33,8 @@ jobs:
         with:
           version: 9
 
-      - name: Get pnpm store directory
-        id: pnpm-cache
-        shell: bash
-        run: |
-          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_OUTPUT
-
-      - name: Setup pnpm cache
-        uses: actions/cache@v4
-        with:
-          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
-          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
-          restore-keys: |
-            ${{ runner.os }}-pnpm-store-
-
       - name: Install dependencies
-        run: pnpm install
+        run: pnpm install --frozen-lockfile
 
       - name: Build docs
         run: pnpm build