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/server2.crt b/tests/data_files/server2.crt
index dca4c24..69c95c5 100644
--- a/tests/data_files/server2.crt
+++ b/tests/data_files/server2.crt
@@ -1,77 +1,21 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 2 (0x2)
-        Signature Algorithm: sha1WithRSAEncryption
-        Issuer: C=NL, O=PolarSSL, CN=PolarSSL Test CA
-        Validity
-            Not Before: Feb 12 14:44:06 2011 GMT
-            Not After : Feb 12 14:44:06 2021 GMT
-        Subject: C=NL, O=PolarSSL, CN=localhost
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-            RSA Public Key: (2048 bit)
-                Modulus (2048 bit):
-                    00:c1:4d:a3:dd:e7:cd:1d:d1:04:d7:49:72:b8:99:
-                    ac:0e:78:e4:3a:3c:4a:cf:3a:13:16:d0:5a:e4:cd:
-                    a3:00:88:a7:ee:1e:6b:96:a7:52:b4:90:ef:2d:72:
-                    7a:3e:24:9a:fc:b6:34:ac:24:f5:77:e0:26:64:8c:
-                    9c:b0:28:7d:a1:da:ea:8c:e6:c9:1c:96:bc:fe:c1:
-                    04:52:b3:36:d4:a3:fa:e1:b1:76:d8:90:c1:61:b4:
-                    66:52:36:a2:26:53:aa:ab:74:5e:07:7d:19:82:db:
-                    2a:d8:1f:a0:d9:0d:1c:2d:49:66:f7:5b:25:73:46:
-                    e8:0b:8a:4f:69:0c:b5:00:90:e1:da:82:10:66:7d:
-                    ae:54:2b:8b:65:79:91:a1:e2:61:c3:cd:40:49:08:
-                    ee:68:0c:f1:8b:86:d2:46:bf:d0:b8:aa:11:03:1e:
-                    7f:56:a8:1a:1e:44:18:0f:0f:85:8b:da:8b:44:5e:
-                    e2:18:c6:62:2f:c7:66:8d:fa:5d:d8:7d:f3:27:89:
-                    29:01:c5:90:0e:3f:27:f1:30:c8:4a:0e:ef:d6:de:
-                    c7:c7:27:6b:c7:05:3d:7a:c4:02:3c:9a:1d:3e:0f:
-                    e8:34:98:5b:cb:73:4b:52:96:d8:11:a2:2c:80:88:
-                    69:39:5a:d3:0f:b0:de:59:2f:11:c7:f7:ea:12:01:
-                    30:97
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Subject Key Identifier: 
-                A5:05:E8:64:B8:DC:DF:60:0F:50:12:4D:60:A8:64:AF:4D:8B:43:93
-            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: sha1WithRSAEncryption
-        9c:67:5c:29:58:a0:79:1b:a7:bd:1c:a8:1a:ec:19:72:f2:6c:
-        0e:f8:73:36:ce:e5:17:4b:12:01:6c:ee:b1:d5:4b:da:fe:73:
-        6f:77:96:e4:bf:29:d9:62:2d:27:19:a8:0c:d8:57:29:70:51:
-        f4:56:bc:a3:28:5a:11:d8:2a:9d:dd:10:84:b8:c5:35:e4:eb:
-        fe:73:5f:18:6f:f5:1c:3c:48:67:3c:aa:7e:af:21:31:e4:d5:
-        2d:66:3d:eb:ed:7a:48:1a:b1:8e:58:89:64:2e:33:78:78:61:
-        59:51:1f:71:c7:10:c0:03:d5:39:c0:7b:17:d7:1c:70:c5:40:
-        67:be:05:dd:62:01:bc:f5:fe:c1:fd:1f:c9:78:4a:dc:17:e9:
-        e8:2f:4c:ad:cc:c1:74:70:90:a9:2f:8c:a6:84:0c:0f:40:4d:
-        b6:71:d2:62:3c:2c:6b:31:4a:e0:aa:7b:da:fd:77:28:e6:b6:
-        d7:78:ec:9d:69:d5:1b:a5:cf:70:8b:cd:a4:5c:54:8b:92:45:
-        14:1f:68:3f:27:78:cf:5c:d5:2f:e2:27:f6:a6:4d:5a:89:c4:
-        0d:4a:39:d3:92:e7:bf:34:5a:13:df:48:0a:c0:fa:0e:2a:02:
-        64:a3:7a:57:37:a7:8c:16:a6:16:bc:ce:1b:98:c2:35:6e:5f:
-        a2:47:1b:47
 -----BEGIN CERTIFICATE-----
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-MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
-MTEwMjEyMTQ0NDA2WhcNMjEwMjEyMTQ0NDA2WjA0MQswCQYDVQQGEwJOTDERMA8G
-A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN
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-VR0TBAIwADAdBgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwHwYDVR0jBBgw
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-UfRWvKMoWhHYKp3dEIS4xTXk6/5zXxhv9Rw8SGc8qn6vITHk1S1mPevtekgasY5Y
-iWQuM3h4YVlRH3HHEMAD1TnAexfXHHDFQGe+Bd1iAbz1/sH9H8l4StwX6egvTK3M
-wXRwkKkvjKaEDA9ATbZx0mI8LGsxSuCqe9r9dyjmttd47J1p1Rulz3CLzaRcVIuS
-RRQfaD8neM9c1S/iJ/amTVqJxA1KOdOS5780WhPfSArA+g4qAmSjelc3p4wWpha8
-zhuYwjVuX6JHG0c=
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+BgNVHQ4EFgQUpQXoZLjc32APUBJNYKhkr02LQ5MwYwYDVR0jBFwwWoAUtFrkpbPe
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+CSqGSIb3DQEBBQUAA4IBAQBYbmGUE3tboOInTANuIf63NHlNGw0Zx79G9Oxv8gny
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+WBKL+sRYcWvNwEUnwbOii6N895YciSZUnzCo53uhJq6/
 -----END CERTIFICATE-----