fix(deps): update traefik to chart 39.0.7 and image v3.6.12

Bump Traefik Helm chart from 39.0.0 to 39.0.7 and container image
from v3.6.7 to v3.6.12, picking up multiple security patches
(CVE-2026-33433, CVE-2026-33186, CVE-2026-32595, and others).

Signed-off-by: Bastian Echterhölter <bastian.echterhoelter@sap.com>
On-behalf-of: @SAP <bastian.echterhoelter@sap.com>

Author: nexus49

.github/workflows/ocm.yaml

@@ -59,8 +59,8 @@ jobs:
       OPENFGA_POSTGRESQL_IMAGE_VERSION: "17.6.0-debian-12-r4"
       GATEWAY_API_VERSION: "v1.4.1"
       GATEWAY_API_COMMIT: "477d172e6ac5eccb82b65781ddb8f924afec4170"
-      TRAEFIK_VERSION: "39.0.0"
-      TRAEFIK_IMAGE_VERSION: "v3.6.7"
+      TRAEFIK_VERSION: "39.0.7"
+      TRAEFIK_IMAGE_VERSION: "v3.6.12"
       TRAEFIK_CRD_VERSION: "1.14.0"
       CERT_MANAGER_VERSION: "v1.19.2"
     steps: