Update GitHub Actions

Author: minoki

.github/workflows/build.yaml

@@ -23,14 +23,14 @@ jobs:
           - os: macos-latest
             flags: '--flags "fma3 f16c"'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: haskell-actions/setup@v2
         name: Setup Haskell
         with:
           ghc-version: ${{ matrix.ghc }}
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cabal/packages
@@ -65,14 +65,14 @@ jobs:
           - ghc: '9.8'
             flags: '--flags x87-long-double'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: haskell-actions/setup@v2
         name: Setup Haskell
         with:
           ghc-version: ${{ matrix.ghc }}
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cabal/packages