Update .github/workflows/ci.yml

Author: hattya

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
           - platform: macOS
             os: macos-latest
           - platform: macOS
-            os: macos-13
+            os: macos-15-intel
             architecture: amd64
           - platform: Windows
             os: windows-latest
@@ -39,11 +39,11 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go-version }}
           cache: false