ci: correct snapshots script import extension

Author: clydin

scripts/snapshots.mts

@@ -10,7 +10,7 @@ import { execSync, spawnSync } from 'node:child_process';
 import * as fs from 'node:fs';
 import * as os from 'node:os';
 import * as path from 'node:path';
-import build from './build.mjs';
+import build from './build.mts';
 import jsonHelp, { createTemporaryProject } from './json-help.mts';
 import { type PackageInfo, packages } from './packages.mts';