Describe the bug
When creating a column with a default value of the current UTC instant, the generated MySQL query will fail with a syntax error.

To Reproduce
Add the FluentMigrator runner, and target it with .AddMySql8().

Add a migration creating table with at least the following column:
.WithColumn("created_at_utc").AsDateTime2().NotNullable().WithDefault(SystemMethods.CurrentUTCDateTime)

Run the migration. The following error will be returned:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UTC_TIMESTAMP

Expected behavior
The migration creates the table as expected. Wrapping the UTC_TIMESTAMP in parentheses causes the table to create as expected.

Information (please complete the following information):

• OS: Docker mysql:8 & Windows 11
• Platform: .NET Core 8
• FluentMigrator version: 5.2.0
• FluentMigrator runner
• Database Management System: MySQL
• Database Management System Version: 8.4.0

Additional context
The following CREATE TABLE statement fails,
create table `test` ( `id` integer not null, `timestamp_utc` datetime not null default utc_timestamp );
while the following CREATE TABLE statement succeeds:
create table `test` ( `id` integer not null, `timestamp_utc` datetime not null default (utc_timestamp) );

This appears to only apply to MySQL 8.0+:
https://dev.mysql.com/doc/refman/8.0/en/data-type-defaults.html#data-types-defaults-explicit