Update certificates to expire in 2029

Update certificates that expire on 2021, to prolong their validity,
to make tests pass three years ahead.
diff --git a/tests/data_files/cert_sha512.crt b/tests/data_files/cert_sha512.crt
index 4bb4eed..b2254fa 100644
--- a/tests/data_files/cert_sha512.crt
+++ b/tests/data_files/cert_sha512.crt
@@ -1,77 +1,20 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 11 (0xb)
-        Signature Algorithm: sha512WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:07 2011 GMT
-            Not After : Feb 12 14:44:07 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=PolarSSL Cert SHA512
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:b9:3c:4a:c5:c8:a3:8e:90:17:a4:9e:52:aa:71:
-                    75:26:61:80:e7:c7:b5:6d:8c:ff:aa:b6:41:26:b7:
-                    be:11:ad:5c:73:16:0c:64:11:48:04:ff:d6:e1:3b:
-                    05:db:89:bb:b3:97:09:d5:1c:14:dd:68:87:39:b0:
-                    3d:71:cb:e2:76:d0:1a:d8:18:2d:80:1b:54:f6:e5:
-                    44:9a:f1:cb:af:61:2e:df:49:0d:9d:09:b7:ed:b1:
-                    fd:3c:fd:3c:fa:24:cf:5d:bf:7c:e4:53:e7:25:b5:
-                    ea:44:22:e9:26:d3:ea:20:94:9e:e6:61:67:ba:2e:
-                    07:67:0b:03:2f:a2:09:ed:f0:33:8f:0b:ce:10:ef:
-                    67:a4:c6:08:da:c1:ed:c2:3f:d7:4a:dd:15:3d:f9:
-                    5e:1c:81:60:46:3e:b5:b3:3d:2f:a6:de:47:1c:bc:
-                    92:ae:eb:df:27:6b:16:56:b7:dc:ec:d1:55:57:a5:
-                    6e:ec:75:25:f5:b7:7b:df:ab:d2:3a:5a:91:98:7d:
-                    97:17:0b:13:0a:a7:6b:4a:8b:c1:47:30:fb:3a:f8:
-                    41:04:d5:c1:df:b8:1d:bf:7b:01:a5:65:a2:e0:1e:
-                    36:b7:a6:5c:cc:30:5a:f8:cd:6f:cd:f1:19:62:25:
-                    ca:01:e3:35:7f:fa:20:f5:dc:fd:69:b2:6a:00:7d:
-                    17:f7
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                7D:E4:9C:6B:E6:F9:71:7D:46:D2:12:3D:AD:6B:1D:FD:C2:AA:78:4C
-            X509v3 Authority Key Identifier: 
-                keyid:B4:5A:E4:A5:B3:DE:D2:52:F6:B9:D5:A6:95:0F:EB:3E:BC:C7:FD:FF
-
-    Signature Algorithm: sha512WithRSAEncryption
-        84:68:78:72:54:00:bf:8a:45:28:35:be:18:47:d8:69:f6:67:
-        de:a6:f8:a6:d0:fd:9f:79:f7:e8:02:8a:c3:83:5d:85:45:cc:
-        b6:98:77:a7:18:3f:6b:d2:e4:d0:af:d5:52:d9:db:7e:4a:d3:
-        68:b0:08:64:14:de:c2:3b:1d:7b:ac:79:ad:49:5a:4c:f6:d2:
-        35:ef:a4:8c:b7:5b:d1:0b:7b:50:c6:9c:48:3e:96:3b:1b:0b:
-        0e:e8:10:3f:8c:3b:4f:6b:1d:5c:3a:27:f3:43:22:ac:37:11:
-        71:b8:07:66:b0:f8:71:c3:22:cf:f4:96:83:93:fb:42:b0:1a:
-        43:f9:4b:df:cb:5f:0f:ba:9e:80:f1:ff:08:3a:46:51:dc:d0:
-        36:bd:b1:c4:ca:fb:00:12:e7:e0:37:70:40:0e:73:19:63:c2:
-        e5:da:56:77:07:68:a5:40:9e:d6:0f:ad:b5:b3:b2:f5:3f:01:
-        e8:68:e7:a3:b0:d7:f3:dd:ff:b6:d7:8f:75:4e:25:ab:12:32:
-        99:45:ad:57:40:de:d7:b4:0d:d0:c3:66:89:47:f2:0c:b2:b5:
-        df:52:0e:fa:63:62:65:89:07:4a:80:69:0e:4e:ba:c0:43:5d:
-        05:75:22:cf:50:f9:ac:bd:ef:8d:8c:10:08:b6:8b:62:4f:a1:
-        60:55:a3:0d
 -----BEGIN CERTIFICATE-----
 MIIDQjCCAiqgAwIBAgIBCzANBgkqhkiG9w0BAQ0FADA7MQswCQYDVQQGEwJOTDER
-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA3WhcNMjEwMjEyMTQ0NDA3WjA/MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxHTAbBgNVBAMTFFBvbGFyU1NMIENlcnQgU0hBNTEyMIIB
-IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuTxKxcijjpAXpJ5SqnF1JmGA
-58e1bYz/qrZBJre+Ea1ccxYMZBFIBP/W4TsF24m7s5cJ1RwU3WiHObA9ccvidtAa
-2BgtgBtU9uVEmvHLr2Eu30kNnQm37bH9PP08+iTPXb985FPnJbXqRCLpJtPqIJSe
-5mFnui4HZwsDL6IJ7fAzjwvOEO9npMYI2sHtwj/XSt0VPfleHIFgRj61sz0vpt5H
-HLySruvfJ2sWVrfc7NFVV6Vu7HUl9bd736vSOlqRmH2XFwsTCqdrSovBRzD7OvhB
-BNXB37gdv3sBpWWi4B42t6ZczDBa+M1vzfEZYiXKAeM1f/og9dz9abJqAH0X9wID
-AQABo00wSzAJBgNVHRMEAjAAMB0GA1UdDgQWBBR95Jxr5vlxfUbSEj2tax39wqp4
-TDAfBgNVHSMEGDAWgBS0WuSls97SUva51aaVD+s+vMf9/zANBgkqhkiG9w0BAQ0F
-AAOCAQEAhGh4clQAv4pFKDW+GEfYafZn3qb4ptD9n3n36AKKw4NdhUXMtph3pxg/
-a9Lk0K/VUtnbfkrTaLAIZBTewjsde6x5rUlaTPbSNe+kjLdb0Qt7UMacSD6WOxsL
-DugQP4w7T2sdXDon80MirDcRcbgHZrD4ccMiz/SWg5P7QrAaQ/lL38tfD7qegPH/
-CDpGUdzQNr2xxMr7ABLn4DdwQA5zGWPC5dpWdwdopUCe1g+ttbOy9T8B6Gjno7DX
-893/ttePdU4lqxIymUWtV0De17QN0MNmiUfyDLK131IO+mNiZYkHSoBpDk66wENd
-BXUiz1D5rL3vjYwQCLaLYk+hYFWjDQ==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 -----END CERTIFICATE-----