Ingress NGINX: Promote NGINX v2.0.3.

Commit: kubernetes/ingress-nginx@1a4d476
Job: https://prow.k8s.io/view/gs/kubernetes-ci-logs/logs/post-ingress-nginx-nginx/1914994587869384704
Build: https://storage.googleapis.com/kubernetes-ci-logs/logs/post-ingress-nginx-nginx/1914994587869384704/artifacts/build.log

Author: Gacko

registry.k8s.io/images/k8s-staging-ingress-nginx/images.yaml

@@ -236,6 +236,7 @@
     "sha256:3e7bda4cf5111d283ed1e4ff5cc9a2b5cdc5ebe62d50ba67473d3e25b1389133": ["v2.0.0"]
     "sha256:0301aff18d076a3726a0c7c07c68db3218dc90d56a3ed419868e21c12114549e": ["v2.0.1"]
     "sha256:d150d220752ed7479a1a1400be69bcca7bf5bf4b49d0d48890927f086eef5e2d": ["v2.0.2"]
+    "sha256:d9e8c4a1dd38159904f09adc8f54255b228a1100e0d9cf602dd82b93ba1eb347": ["v2.0.3"]
 
 # Ingress NGINX: Test Runner
 - name: e2e-test-runner