Update setup-go actions

.github/workflows/ci.yaml

@@ -50,7 +50,7 @@ jobs:
           submodules: recursive
 
       - name: Setup Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go_version }}
 
@@ -80,7 +80,7 @@ jobs:
           submodules: recursive
 
       - name: Setup Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v6
         with:
           go-version: ^1.25
 
@@ -112,7 +112,7 @@ jobs:
           submodules: recursive
 
       - name: Setup Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v6
         with:
           go-version: ^1.25