Ingress NGINX: Promote E2E Test Echo v1.1.3.

Commit: kubernetes/ingress-nginx@5bf90a1
Job: https://prow.k8s.io/view/gs/kubernetes-ci-logs/logs/post-ingress-nginx-e2e-test-echo/1915828513529663488
Build: https://storage.googleapis.com/kubernetes-ci-logs/logs/post-ingress-nginx-e2e-test-echo/1915828513529663488/artifacts/build.log

Author: Gacko

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

@@ -158,6 +158,7 @@
     "sha256:0713ba47b3e4359b38ad53cd785c34b158e168a91636520a4a5e54cd500d8356": ["v1.1.0"]
     "sha256:a1e0152e2eeab26e3f6fd3986f3d82b17bc7711717cae5392dcd18dd447ba6ef": ["v1.1.1"]
     "sha256:b43ed89fb7ae67c430470d4eb9ea4058c1c74c42b10aa064244eb971b9a370d8": ["v1.1.2"]
+    "sha256:77e8f7aa7e5651409cbe4ca38430e61828873c7df325e6f83c7345e34011f6b2": ["v1.1.3"]
     "sha256:41c043188a499d460e7425883a3b196e13f10bf40c395895dbdf06caf3324536": ["v20200627-g35e992fe0"]
     "sha256:8d6c4588da364e0ad251ad19203b2dd1d3f99a9229c019bdecfbb56211f94419": ["v20200708-g5521f7151"]
     "sha256:e5cb6169a0c2bc9dc188abb6756a976b6386cac95ccd5c28cf8ac5ac010cbd60": ["v20200812-gf6dce060b"]