feat: Create workflow history database migration (no-changelog) (#7031)

Github issue / Community forum post (link here to close automatically):

For the upcoming workflow history feature, we're creating the necessary
database tables.

Also changes the schema for Postgres so the versionId column is now
properly a UUID. The `using` statement prevents losing data, basically
converting the strings to UUIDs.

---------

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <netroy@users.noreply.github.com>

packages/cli/src/databases/migrations/common/1692967111175-CreateWorkflowHistoryTable.ts

@@ -0,0 +1,27 @@
+import type { MigrationContext, ReversibleMigration } from '@db/types';
+
+const tableName = 'workflow_history';
+
+export class CreateWorkflowHistoryTable1692967111175 implements ReversibleMigration {
+	async up({ schemaBuilder: { createTable, column }, queryRunner }: MigrationContext) {
+		await createTable(tableName)
+			.withColumns(
+				column('versionId').varchar(36).primary.notNull,
+				column('workflowId').varchar(36).notNull,
+				column('nodes').text.notNull,
+				column('connections').text.notNull,
+				column('authors').varchar(255).notNull,
+			)
+			.withTimestamps.withIndexOn('workflowId')
+			.withForeignKey('workflowId', {
+				tableName: 'workflow_entity',
+				columnName: 'id',
+				onDelete: 'CASCADE',
+			})
+			.execute(queryRunner);
+	}
+
+	async down({ schemaBuilder: { dropTable } }: MigrationContext) {
+		await dropTable(tableName);
+	}
+}