Bump CI actions to Node.js 24 compatible versions

checkout v4→v5, setup-go v5→v6

Author: maksimov

.github/workflows/ci.yml

@@ -10,8 +10,8 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/checkout@v5
+      - uses: actions/setup-go@v6
         with:
           go-version: "1.24"
       - run: go build ./...
@@ -36,8 +36,8 @@ jobs:
           - goos: darwin
             goarch: arm64
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/checkout@v5
+      - uses: actions/setup-go@v6
         with:
           go-version: "1.24"
       - name: Build