Log Message:
openldap: updated to 2.4.57

OpenLDAP 2.4.57 Release (2021/01/18)
	Fixed ldapexop to use correct return code
	Fixed slapd to remove asserts in UUIDNormalize
	Fixed slapd to remove assert in csnValidate
	Fixed slapd validity checks for issuerAndThisUpdateCheck
	Fixed slapd validity checks for serialNumberAndIssuerCheck
	Fixed slapd AVA sort with invalid RDN
	Fixed slapd ldap_X509dn2bv to check for invalid BER after RDN count
	Fixed slapd saslauthz to remove asserts in validation
	Fixed slapd saslauthz to use slap_sl_free on normalized DN
	Fixed slapd saslauthz SEGV in slap_parse_user
	Fixed slapd modrdn memory leak
	Fixed slapd double-free in vrfilter
	Fixed slapd cancel operation to correctly terminate
	Fixed slapd-ldap fix binds on retry with closed connection
	Fixed slapo-syncprov to ignore duplicate sessionlog entries