build(deps): bump actions/setup-go from 5 to 6 (#232)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 5 to 6.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v5...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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci-helm-deploy-nginx.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: '1.24'
       # https://github.com/docker/setup-qemu-action

.github/workflows/ci-kustomize-deploy.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: '1.24'
       # https://github.com/docker/setup-qemu-action

.github/workflows/lint.yml

@@ -7,7 +7,7 @@ jobs:
   lint-go:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/setup-go@v5
+    - uses: actions/setup-go@v6
       with:
         go-version: '1.24'
     - uses: actions/checkout@v4
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: actions/setup-go@v5
+    - uses: actions/setup-go@v6
       with:
         go-version: '1.24'
     - name: Run unit tests

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: "1.24"
       # https://github.com/docker/setup-qemu-action