This cert has an invalid serial number, as it is a non-minimal DER encoding of 1.

The certificate data can be updated/regenerated with the
net/data/parse_certificate_unittest/regenerate_pem_from_ascii.py script.

#-----BEGIN SERIAL-----
    INTEGER {`0001`}
#-----END SERIAL-----

-----BEGIN CERTIFICATE-----
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
-----END CERTIFICATE-----

ERROR: Serial number is not a valid INTEGER
ERROR: Failed parsing TBSCertificate

-----BEGIN ERRORS-----
RVJST1I6IFNlcmlhbCBudW1iZXIgaXMgbm90IGEgdmFsaWQgSU5URUdFUgpFUlJPUjogRmFpbGVkIHBhcnNpbmcgVEJTQ2VydGlmaWNhdGUK
-----END ERRORS-----