Merge pull request #1672 from justaugustus/go116

releng: Promote Golang 1.16 official images

k8s.gcr.io/images/k8s-staging-build-image/images.yaml

@@ -204,6 +204,7 @@
     "sha256:be4039f250f26e1321d048e4dd6e81b78a80825c2dd490bacc0ac80ebb94bbc5": ["v12.1.1"]
 - name: go-runner
   dmap:
+    "sha256:004c18fbd8ca3fd431d60654edd0c19eed7e805385afac40d2b5b6b45cbd9e8e": ["v2.3.1-go1.16-buster.0"]
     "sha256:059fd64240ad0fcd0f6eee6a791004747f1b4a5d3c44dd5ca68258bda4555e67": ["buster-v2.2.4"]
     "sha256:0c8bac67a806659c4ee97c9ab6731a5d21d6b02de3290432e7d13f8c98b227d1": ["buster-v1.0.1"]
     "sha256:384e84aa715aed583798a77b92b78747f786f238a3bf9a43419d80029ecb3cf8": ["buster-v2.2.2"]
@@ -242,6 +243,7 @@
     "sha256:7449d6df9191dc505139afba4897481e2ebcf7cd9b31b9cd40bf31bcddfbda2b": ["v1.13.9-3"]
     "sha256:7a9bb40e3f46641940d770e1aef137d11d3c87318d39f99bd2974b4e7daeea3e": ["v1.13.15-1"]
     "sha256:7bb67adb41980acff4aa3a40e4f1220cd0be814e7f4e4da2fd4a601e2215fdf3": ["v1.14.2-2"]
+    "sha256:80a76c8d5ba447d43e599905eb6dc85048f25ab7cfe2ec23bcf8a4139111c147": ["v1.16.0-1"]
     "sha256:8d3fd0e3e126b085d4475f1954cc394a2ebea908f370095eb7463d2b1f4dbfdd": ["v1.12.17-1"]
     "sha256:95366bfc21a10198b6f0ece3e0dcac27d9b8e39fc69239aa62d76b4a2b5ca261": ["v1.13.9-2"]
     "sha256:97e77164ddc1f9ab56bcbab3e2895b882097b1eabd820497e894f41c0e4908fe": ["v1.12.12-1"]

k8s.gcr.io/images/k8s-staging-releng/images.yaml

@@ -6,6 +6,7 @@
     "sha256:f5fc791f5ef03c5fe3329fff3a40b80a44029a6e236981a2e5133ebf9597f9dd": ["v0.1.0", "v20201103-v0.5.0-63-ga247d79"]
 - name: releng-ci
   dmap:
+    "sha256:030438654a60190ddc1b5bfd1dcc4947e8b834760bac0393d554128b41eb81b4": ["v0.4.0"]
     "sha256:41f58f0b040a1473b6f051320bb5bf8b7b7c320c67eada0f07cb8eebc582c063": ["v0.3.0"]
     "sha256:4fa8a71135bc93f8a9f8f172c276e53be769d3d4674852f3e0d110dabbddc7e1": ["v0.1.2"]
     "sha256:69751abccafd256b436e797456a18520011ce4115302ab9080d5aaffc5a13f80": ["v0.2.1"]