Add test for server memory leak #7372

Job	Run time
Waiting for build / Waiting for build	12s
OCSP clone	0s
OCSP with CMC	0s
OCSP with LDAP-based CRL publishing	0s
OCSP on separate instance	0s
OCSP with existing config	0s
OCSP with direct CRL publishing	0s
OCSP with HSM	0s
OCSP with self certificate verification test	1s
Standalone OCSP	0s
Basic OCSP	0s
OCSP with external certs	0s
OCSP container	0s
	13s

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