fix(deps): update dependency @sendgrid/mail to v7 (#424)

Author: renovate-bot

samples/package.json

@@ -15,7 +15,7 @@
  },
  "dependencies": {
  "@google-cloud/compute": "^1.2.0",
- "@sendgrid/mail": "^6.3.1",
+ "@sendgrid/mail": "^7.0.0",
  "node-fetch": "^2.3.0",
  "nodemailer": "^6.0.0",
  "nodemailer-smtp-transport": "^2.7.4"