chore(deps): Update actions/setup-go action to v6 (#689)

Author: cq-bot

.github/workflows/lint_golang.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
       - name: golangci-lint

.github/workflows/unittest.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Check out code into the Go module directory
         uses: actions/checkout@v5
       - name: Set up Go 1.x
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
       - run: go mod download