cluster/certs: update k0 certs

This leaves us with the next set of expiring certs in September 2021.

Fixes b/36.

Change-Id: I536497626c0dd3807fccf28d4b61e5e531cf8d9c
diff --git a/cluster/certs/kube-controllermanager.cert b/cluster/certs/kube-controllermanager.cert
index 291c604..10ce219 100644
--- a/cluster/certs/kube-controllermanager.cert
+++ b/cluster/certs/kube-controllermanager.cert
@@ -1,9 +1,9 @@
 -----BEGIN CERTIFICATE-----
-MIIFdjCCBF6gAwIBAgIUFcalvELfl2XL6uFIqLjD+5G2tD4wDQYJKoZIhvcNAQEL
+MIIFdjCCBF6gAwIBAgIUGOVHVh0NR+sSqL9n0ALIrUHxVgMwDQYJKoZIhvcNAQEL
 BQAwgYMxCzAJBgNVBAYTAlBMMRQwEgYDVQQIEwtNYXpvd2llY2tpZTEPMA0GA1UE
 BxMGV2Fyc2F3MRswGQYDVQQKExJXYXJzYXcgSGFja2Vyc3BhY2UxEzARBgNVBAsT
-CmNsdXN0ZXJjZmcxGzAZBgNVBAMTEmt1YmVybmV0ZXMgbWFpbiBDQTAeFw0yMDAz
-MjgxNTE1MDBaFw0yMTAzMjgxNTE1MDBaMIG3MQswCQYDVQQGEwJQTDEUMBIGA1UE
+CmNsdXN0ZXJjZmcxGzAZBgNVBAMTEmt1YmVybmV0ZXMgbWFpbiBDQTAeFw0yMTAz
+MjcxMTI3MDBaFw0yMjAzMjcxMTI3MDBaMIG3MQswCQYDVQQGEwJQTDEUMBIGA1UE
 CBMLTWF6b3dpZWNraWUxDzANBgNVBAcTBldhcnNhdzEnMCUGA1UEChMec3lzdGVt
 Omt1YmUtY29udHJvbGxlci1tYW5hZ2VyMS8wLQYDVQQLEyZLdWJlcm5ldGVzIENv
 bXBvbmVudCBjb250cm9sbGVybWFuYWdlcjEnMCUGA1UEAxMec3lzdGVtOmt1YmUt
@@ -22,11 +22,11 @@
 BgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwG
 A1UdEwEB/wQCMAAwHQYDVR0OBBYEFAjGzAQ6wd1qf2er14tBEmwSV76JMB8GA1Ud
 IwQYMBaAFJgyXQ5PMx77CemJJBMWQmqA0ZnQMCkGA1UdEQQiMCCGHnN5c3RlbTpr
-dWJlLWNvbnRyb2xsZXItbWFuYWdlcjANBgkqhkiG9w0BAQsFAAOCAQEAjeeYwCxm
-8yfTfiWSKMMW9HTlK7zAl8PKngOvARihFgUfO1MbWQLTqYvkZ8/b8d3tXqxGHIY8
-TqLtK0N4a3ty+7IFwqnA29+apSPQOjK2f6RfSwUPFLqGDFXcM0pHHRbalYmUM///
-pEu3B223yimrtacAj3NFy1c5Jd7V36ZhwBAzzh3raWpqbuvm80MZccmb1gml1a/G
-KuyLzrtu8N6ObpsMFQSDbelgvgVvNh0akPANqrDc8BG5gDWkurIhsRWQC+POMKlE
-/c/EgyGXpZfvLtTprgCz+RRIGhV3GNRRbN/sdc3jO7M9QyJod3639VCf5gg5EU2l
-5sbxhHL+mvqJwA==
+dWJlLWNvbnRyb2xsZXItbWFuYWdlcjANBgkqhkiG9w0BAQsFAAOCAQEAterGoD4V
+aBT2qxqsUrZKcg9RyPyKNZM+ixZq3boOw1+8x1mryKrmb8pNS9BV28jbhwFu5G9I
+XIwU6Ugzf18LFHUZj/MRGEaKz+lNfwbgQjFrNu2fZaqzyXBhnvbiPOERfzDn6s3R
+35gj3AO/1Rg2DR0qGQhNw1IiRerg+IDBdNq1rVHZ8qJi8bwLmT1GnWNinzEnOOKT
+i86oS5z86Mqa5DQQt2EOUtzm5XSBLfHj1xciBSMqRJzoKThR71lUG50Vcoha5ra8
+6ZR/iOvdMEUZqElhZI31tToGikkJ0RQ6xLnSnC8GxNcGzI+m40U77Ltof5xKqZPR
+1iMUGkJYznjjcw==
 -----END CERTIFICATE-----