Ingress NGINX: Promote NGINX v0.3.3.

Commit: kubernetes/ingress-nginx@06fd5be
Job: https://prow.k8s.io/view/gs/kubernetes-ci-logs/logs/post-ingress-nginx-nginx/1914994588590804992
Build: https://storage.googleapis.com/kubernetes-ci-logs/logs/post-ingress-nginx-nginx/1914994588590804992/artifacts/build.log

Author: Gacko

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

@@ -228,6 +228,7 @@
     "sha256:73b4df804b128dc7aed9a769e17e9eaa70304895f26115c3d57e44e08ecc3685": ["v0.3.0"]
     "sha256:95583e4278a30f52e2690432a6625c9b86a400c780a657bb0a6f170994a10eb4": ["v0.3.1"]
     "sha256:f1b03d8cbfd32562deb6cf6b7bda09d238c44db13f56013cd5988c74a7379b5e": ["v0.3.2"]
+    "sha256:6ac71e622b0f964851b62a6363d853d2bd14a6b7e9c6e2eff49f4b1722e88bb5": ["v0.3.3"]
     "sha256:11ee0d0e3d063f1468f9a82958d57fa0718614fe10b676941f4dea0aef091faf": ["v1.0.0"]
     "sha256:43e04f78d7544010e2e86918faae1d15091995b7ef6e522f53cf3035ad814567": ["v1.1.0"]
     "sha256:c4b3f79fb88eab2ac03bde5c6b8340ffad941e0fce0eaa797e98481683b3b5aa": ["v1.2.0"]