chore: update actions/cache action to v4 (#53)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -43,7 +43,7 @@ jobs:
           echo "pnpm_cache_dir=$(pnpm store path)" >> $GITHUB_OUTPUT
 
       - name: Setup pnpm cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.pnpm-cache.outputs.pnpm_cache_dir }}
           key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}

.github/workflows/main.yml

@@ -43,7 +43,7 @@ jobs:
           echo "pnpm_cache_dir=$(pnpm store path)" >> $GITHUB_OUTPUT
 
       - name: Setup pnpm cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.pnpm-cache.outputs.pnpm_cache_dir }}
           key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}