ci: bump actions/setup-go from 4 to 5

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 4 to 5.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](https://github.com/actions/setup-go/compare/v4...v5)

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

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

.github/workflows/ci-outpost.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version-file: "go.mod"
       - name: Prepare and generate API
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version-file: "go.mod"
       - name: Setup authentik env
@@ -125,7 +125,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version-file: "go.mod"
       - uses: actions/setup-node@v4

.github/workflows/release-publish.yml

@@ -67,7 +67,7 @@ jobs:
           - radius
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version-file: "go.mod"
       - name: Set up QEMU
@@ -126,7 +126,7 @@ jobs:
         goarch: [amd64, arm64]
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
           go-version-file: "go.mod"
       - uses: actions/setup-node@v4