⬆️ Bump @sendgrid/client to v7.7.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@sendgrid/client (source)	7.6.2 -> 7.7.0

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Release Notes

sendgrid/sendgrid-nodejs

### [`v7.7.0`](https://togithub.com/sendgrid/sendgrid-nodejs/blob/HEAD/CHANGELOG.md#​2022-05-18-Version-770) [Compare Source](https://togithub.com/sendgrid/sendgrid-nodejs/compare/7.6.2...7.7.0) **Library - Docs** - [PR #​1360](https://togithub.com/sendgrid/sendgrid-nodejs/pull/1360): Modify README.md in alignment with SendGrid Support. Thanks to [@​garethpaul](https://togithub.com/garethpaul)! - [PR #​1359](https://togithub.com/sendgrid/sendgrid-nodejs/pull/1359): Fix troubleshooting in readme. Thanks to [@​MarcusHSmith](https://togithub.com/MarcusHSmith)! **Library - Feature** - [PR #​1352](https://togithub.com/sendgrid/sendgrid-nodejs/pull/1352): allow use of bypass options. Thanks to [@​acanimal](https://togithub.com/acanimal)! **Library - Fix** - [PR #​1351](https://togithub.com/sendgrid/sendgrid-nodejs/pull/1351): Fix typings for eventwebhook.d.ts PublicKey. Thanks to [@​Cellule](https://togithub.com/Cellule)!

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