doc: correct typo: cert.issuerCertificate

- docs incorrectly mention issuerCert, should be issuerCertificate

Fix for Commit:
a856406c2dc#diff-f6e3a86962eaf0897ab59e88b418e64fR678

Fix for PR: #24358

Author: srl295

doc/api/tls.md

@@ -813,7 +813,7 @@ certificate.
    alternative to the `subject` names.
 * `infoAccess` {Array} (Optional) An array describing the AuthorityInfoAccess,
    used with OCSP.
-* `issuerCert` {Object} (Optional) The issuer certificate object. For
+* `issuerCertificate` {Object} (Optional) The issuer certificate object. For
    self-signed certificates, this may be a circular reference.
 
 The certificate may contain information about the public key, depending on