fix: update Netlify brand diamond icon (#224)

Author: serhalp

packages/vite-plugin/src/lib/logger.ts

@@ -1,7 +1,7 @@
 import chalk from 'chalk'
 
 const NETLIFY_CYAN = chalk.rgb(40, 180, 170)
-const banner = NETLIFY_CYAN('◈ Netlify ◈')
+const banner = NETLIFY_CYAN('⬥ Netlify ⬥')
 
 export const logger = {
   error: (...data: any[]) => (data.length === 0 ? console.error(...data) : console.error(banner, ...data)),