Register TLS config when setting up master connection info

This ensures that the master's TLS config has been registered with
the mysql driver before any connections are attempted.

This is the second part of resolving the following TLS verify
error:

2025-01-02 02:07:26 FATAL tls: failed to verify certificate: x509: certificate is valid for [old host], not [new host]

Author: petervandoros

go/logic/migrator.go

@@ -790,6 +790,9 @@ func (this *Migrator) initiateInspector() (err error) {
 		if this.migrationContext.CliMasterPassword != "" {
 			this.migrationContext.ApplierConnectionConfig.Password = this.migrationContext.CliMasterPassword
 		}
+		if err := this.migrationContext.ApplierConnectionConfig.RegisterTLSConfig(); err != nil {
+			return err
+		}
 		this.migrationContext.Log.Infof("Master forced to be %+v", *this.migrationContext.ApplierConnectionConfig.ImpliedKey)
 	}
 	// validate configs

go/mysql/utils.go

@@ -128,7 +128,11 @@ func GetMasterConnectionConfigSafe(connectionConfig *ConnectionConfig, visitedKe
 	if !masterKey.IsValid() {
 		return connectionConfig, nil
 	}
+
 	masterConfig = connectionConfig.DuplicateCredentials(*masterKey)
+	if err := masterConfig.RegisterTLSConfig(); err != nil {
+		return nil, err
+	}
 
 	log.Debugf("Master of %+v is %+v", connectionConfig.Key, masterConfig.Key)
 	if visitedKeys.HasKey(masterConfig.Key) {