Merge pull request #34 from haskell-jp/gh33-github-actions-cache

Update actions/cache

Author: igrep

.github/workflows/build.yaml

@@ -20,7 +20,7 @@ jobs:
 
     - name: Cache .stack
       id: cache-stack
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ~/.stack
         key: "\

.github/workflows/update.yaml

@@ -26,7 +26,7 @@ jobs:
 
     - name: Cache .stack
       id: cache-stack
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ~/.stack
         key: "\