fix(ci): resolve Node 20 deprecation in govulncheck

The pinned v1.0.4 used actions/checkout@v4 and
actions/setup-go@v5 internally, both built on Node 20.
Latest main uses v6 of both, which run on Node 24.

Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>

.github/workflows/govulncheck.yml

@@ -30,6 +30,6 @@ jobs:
           go-version: '${{ env.GOLANG_VERSION }}'
           check-latest: true
       - name: govulncheck
-        uses: golang/govulncheck-action@b625fbe08f3bccbe446d94fbf87fcc875a4f50ee # pin@1.0.4
+        uses: golang/govulncheck-action@032d45514ae346b1db93c04b0c90b841c370344f # pin@main 2026-07-06
         with:
           go-package: ./...