One relation isNullable property should be !notNull rather than notNull

[danielsharvey]

The One relation appears to have inverted logic for the isNullable property.

drizzle-orm/drizzle-orm/src/relations.ts

Lines 532 to 533 in a78eefe

	(config?.fields.reduce<boolean>((res, f) => res && f.notNull, true)
	?? false) as Equal<TColumns[number]['_']['notNull'], true>,

Specifically, it appears to set isNullable to true if all parts of the relation's fields are notNull() columns.

It looks to me like the isNullable should be set to true if none of the relation's fields are notNull().

The above logic is from the createOne() method:

drizzle-orm/drizzle-orm/src/relations.ts

Lines 514 to 536 in e0aaeb2

	export function createOne<TTableName extends string>(sourceTable: Table) {
	return function one<
	TForeignTable extends Table,
	TColumns extends [
	AnyColumn<{ tableName: TTableName }>,
	...AnyColumn<{ tableName: TTableName }>[],
	],
	>(
	table: TForeignTable,
	config?: RelationConfig<TTableName, TForeignTable['_']['name'], TColumns>,
	): One<
	TForeignTable['_']['name'],
	Equal<TColumns[number]['_']['notNull'], true>
	> {
	return new One(
	sourceTable,
	table,
	config,
	(config?.fields.reduce<boolean>((res, f) => res && f.notNull, true)
	?? false) as Equal<TColumns[number]['_']['notNull'], true>,
	);
	};
	}