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/etcd-bc01n02.hswaw.net.cert b/cluster/certs/etcd-bc01n02.hswaw.net.cert
index 5fb1c6d..8994a7b 100644
--- a/cluster/certs/etcd-bc01n02.hswaw.net.cert
+++ b/cluster/certs/etcd-bc01n02.hswaw.net.cert
@@ -1,9 +1,9 @@
 -----BEGIN CERTIFICATE-----
-MIIFHDCCBASgAwIBAgIUfKVgcr+CKsr3u9FsVXFRZRXv8B0wDQYJKoZIhvcNAQEL
+MIIFHDCCBASgAwIBAgIUBPBhiwhMaJS05SkiqtKXPGIKJCcwDQYJKoZIhvcNAQEL
 BQAweDELMAkGA1UEBhMCUEwxFDASBgNVBAgTC01hem93aWVja2llMQ8wDQYDVQQH
 EwZXYXJzYXcxGzAZBgNVBAoTEldhcnNhdyBIYWNrZXJzcGFjZTETMBEGA1UECxMK
-Y2x1c3RlcmNmZzEQMA4GA1UEAxMHZXRjZCBjYTAeFw0yMDAzMjgxNjQ1MDBaFw0y
-MTAzMjgxNjQ1MDBaMHcxCzAJBgNVBAYTAlBMMRQwEgYDVQQIEwtNYXpvd2llY2tp
+Y2x1c3RlcmNmZzEQMA4GA1UEAxMHZXRjZCBjYTAeFw0yMTAzMjcxMTM3MDBaFw0y
+MjAzMjcxMTM3MDBaMHcxCzAJBgNVBAYTAlBMMRQwEgYDVQQIEwtNYXpvd2llY2tp
 ZTEPMA0GA1UEBxMGV2Fyc2F3MSUwIwYDVQQLExxub2RlIGV0Y2Qgc2VydmVyIGNl
 cnRpZmljYXRlMRowGAYDVQQDExFiYzAxbjAyLmhzd2F3Lm5ldDCCAiIwDQYJKoZI
 hvcNAQEBBQADggIPADCCAgoCggIBAMKzDo59mxEhwx8x3ju95KmjbND9wCga9YGf
@@ -21,10 +21,10 @@
 AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSv6oLJS4Ov
 F3EnzsT1IOfrUVwQszAfBgNVHSMEGDAWgBTxWbhmTT7D50LugaPURn85U3X5DzAc
 BgNVHREEFTATghFiYzAxbjAyLmhzd2F3Lm5ldDANBgkqhkiG9w0BAQsFAAOCAQEA
-Dd6WnaNXELgxr/xJVCSFSMiD8e3FjSpH/k/4sCUzonhFS/vIm9b8xEAT0p+bkL/4
-XCgRE/mjQQgdSFEXmZ75AEe+DqYDSjfoIJHAVxJzi/3uexd4+EauVQ4XZh8RMk05
-1HO3gP3wO8RFqUsTKGOTriUVF1zaIz4UxJEzT2BWJkgp5G60HUqXUyaKwNhTDNZL
-p9yzVpsuPHuRlyRZjAHdDafaW6sTFZWAQXxao2NKLMhSi3JLArlJuBuh/4QjhZzw
-UW0U/4yNot/H/kX6Nh41OoBY/mdGGTN7CAndFnXMEEVAuM3gja8LiG3VwDG2bpX7
-C4FJ50A5mcfOEOvnKLA6Zw==
+ilXcdHIWRduN07J0Z5xl6sJs9zYxiGW3twHpUsPZ3eTIvrT0z76RBBgUn/Qlz1dG
+jucc2lkKa+XmUpBgpm/8WNqf2lxrXXrj1KDeosZAppwxFzfhMktFHfVJH3dujbwb
+5eWnBHPp0rMluM/23Ep0hUSHTrGOmxrKplfptFqZJ5AJ3PiXKhxLp/lltUSdgngV
+x9q7fY02d5XaGP2l6QNvO7cSeq7mfvhPXuhmVFPNEU1uzrxuamVWaNcoJ11IeuUd
+JGQOfaymfj6ScOt2zQEpC2OVho5aMhWOPK7wJZ1++mvoVJ0m/hlCLWFKgVpDWocF
+n5ss/F7Gxsa7zGgYBRBwpg==
 -----END CERTIFICATE-----