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/kubefront-apiserver.cert b/cluster/certs/kubefront-apiserver.cert
index 409beb3..c7e90a1 100644
--- a/cluster/certs/kubefront-apiserver.cert
+++ b/cluster/certs/kubefront-apiserver.cert
@@ -1,9 +1,9 @@
 -----BEGIN CERTIFICATE-----
-MIIFEzCCA/ugAwIBAgIURk8WW4qapypnrPH9a2aMG+oMUpgwDQYJKoZIhvcNAQEL
+MIIFEzCCA/ugAwIBAgIUMFLqy/yR+qaJxJmqesPU+M+xVKwwDQYJKoZIhvcNAQEL
 BQAwgYcxCzAJBgNVBAYTAlBMMRQwEgYDVQQIEwtNYXpvd2llY2tpZTEPMA0GA1UE
 BxMGV2Fyc2F3MRswGQYDVQQKExJXYXJzYXcgSGFja2Vyc3BhY2UxEzARBgNVBAsT
 CmNsdXN0ZXJjZmcxHzAdBgNVBAMTFmt1YmVybmV0ZXMgZnJvbnRlbmQgQ0EwHhcN
-MjAwMzI4MTUxNTAwWhcNMjEwMzI4MTUxNTAwWjBmMQswCQYDVQQGEwJQTDEUMBIG
+MjEwMzI3MTEyNzAwWhcNMjIwMzI3MTEyNzAwWjBmMQswCQYDVQQGEwJQTDEUMBIG
 A1UECBMLTWF6b3dpZWNraWUxDzANBgNVBAcTBldhcnNhdzEcMBoGA1UECxMTS3Vi
 ZXJuZXRlcyBGcm9udGVuZDESMBAGA1UEAxMJYXBpc2VydmVyMIICIjANBgkqhkiG
 9w0BAQEFAAOCAg8AMIICCgKCAgEAuVXNUv1oJrLw9XxagSTyHegDeHT71JSdeYWx
@@ -20,11 +20,11 @@
 /xZzYekCAwEAAaOBljCBkzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB
 BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFKkQFBbQv3W0
 jUMCdTBkmb0YlS7DMB8GA1UdIwQYMBaAFI+XbXEIcmDLzHcqyvkE9KRqvCX0MBQG
-A1UdEQQNMAuCCWFwaXNlcnZlcjANBgkqhkiG9w0BAQsFAAOCAQEAGI6MmkpsH4Ur
-mU20a8EmXkaGK9pD4hvbnsFsnzR0CjE8KHmDWIKlkg6RJZlnZnsd4UmnJTbnpM6A
-IkOycdwXsD8QrWwOMOqT3mIw4OYZqog4WqXcXlpeQwDmzC5mqEPWmy/Vr0CCIzFF
-Cx2ElcoIBQ46o9hm4Lx91uyWqDFRsBLleE+rgr9nCqesG4kYylT4Tb21l+YGQqtC
-v1mpXD7jaoyVVGpm28zUE2v/bGZsBfmd5cC9MVvyVrlhL4soI1UCO5aP/n/DxY0a
-iJ3UvlNnUbFuo0GUalbIwlTlVK/l6o6XRPINGbxTPEaueDLPKIqvvF+ZZBDMx7Hl
-k3IBIbEW8A==
+A1UdEQQNMAuCCWFwaXNlcnZlcjANBgkqhkiG9w0BAQsFAAOCAQEAaYm8tzCnm2BW
+IijcvHFnEmubdsYXYanIUzI60zQaUQueke9RhM/fJzO0Sga5tCHArU4diQgmimu3
+qtO+WUNNlxWw40XP7ZvxjYZZDCdYa+1fwdpcim8OtQjpIiwMe9rZ1tT6HRBCav3R
+jCzEQo0MrB8rSiwltSKRJRFc+zirmAhFwcD4zhZtc8tEiruG7HD5f7tdzFk1byY9
+R53Uug6iDvg0iyjBiPZ2R9JqUQ22ip1aa0Oymd8yLXjeNsN+F+sOD+R6m14feUyt
+jRYnfe0vvU70ct8gUAgVsHxkAqruca44SX5cY8djcKn4GHtwDa98rKJffBb4jnXA
+I36kVU5YmQ==
 -----END CERTIFICATE-----