update cache

Author: morganchen12

.github/workflows/check.yml

@@ -18,7 +18,7 @@ jobs:
     - uses: actions/checkout@v2
 
     - name: Cache Mint packages
-      uses: actions/cache@v1
+      uses: actions/cache@v4
       with:
         path: ${{ env.MINT_PATH }}
         key: ${{ runner.os }}-mint-${{ hashFiles('**/Mintfile') }}