build: update GitHub actions versions

Author: ncw

.github/workflows/build.yml

@@ -55,12 +55,12 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Install Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v5
         with:
           stable: 'false'
           go-version: ${{ matrix.go }}
@@ -76,7 +76,7 @@ jobs:
           env
 
       - name: Go module cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}