deps/gha: bump actions/setup-go from 5.2.0 to 6.5.0

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 5.2.0 to 6.5.0.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@3041bf5...924ae3a)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: 6.5.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -78,7 +78,7 @@ jobs:
       # --- Go : coraza API service ---
       - name: Set up Go
         if: matrix.lang == 'go'
-        uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
+        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
         with:
           go-version: "1.25"
       - name: Run Go unit tests