feat: add date and time of last type update

scripts/convert-openapi-to-typescript.mjs

@@ -4,11 +4,12 @@ import { writeFile } from 'fs/promises'
 import openapiTS from 'openapi-typescript'
 
 function convertOpenapiToTypescript(inputFilePath) {
+  const time = new Date().toISOString().split('T').join(' ')
   return openapiTS(inputFilePath, {
     commentHeader: `
 /* eslint-disable */
 /*
- * This file was auto-generated by \`make update-types\`.
+ * This file was auto-generated by \`make update-types\` at ${time}.
  * DO NOT make changes to this file.
  */
         `.trimStart(),