Bump actions/setup-go from 4 to 6

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 4 to 6.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](https://github.com/actions/setup-go/compare/v4...v6)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build.yaml

@@ -10,7 +10,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
       - name: Install Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v6
         with:
           go-version: '1.26.x'
       - name: Install node

.github/workflows/release.yaml

@@ -27,7 +27,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
       - name: Install Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v6
         with:
           go-version: '1.26.x'
       - name: Install node

.github/workflows/test.yaml

@@ -27,7 +27,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
       - name: Install Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v6
         with:
           go-version: '1.26.x'
       - name: Install node