fix: change the slack bot constant

src/detect_section_selector_masters/sendDiffToSlack.ts

@@ -3,8 +3,8 @@ import { readdirSync } from 'fs';
 import { join } from 'path';
 
 async function uploadAll() {
-  const token = process.env.SLACK_TOKEN!;
-  const channel = process.env.SLACK_CHANNEL!;
+  const token = process.env.SLACK_BOT_USER_OAUTH_TOKEN!;
+  const channel = process.env.DESIGN_TEAM_CHANNEL_ID!;
   const dir = join(__dirname, 'diffWithBaseline');
   const files = readdirSync(dir).filter(f => f.endsWith('.json'));