[Snyk] Upgrade next from 12.1.1 to 12.3.4

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to upgrade next from 12.1.1 to 12.3.4.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

- The recommended version is **194 versions** ahead of your current version. - The recommended version was released **2 months ago**, on 2022-11-21.

**Note:** *You are seeing this because you or someone else with access to this repository has authorized Snyk to open upgrade PRs.* For more information: 🧐 [View latest project report](https://app.snyk.io/org/cheshirecode/project/1be00237-0d09-4b78-9d78-98b66a025861?utm_source=github&utm_medium=referral&page=upgrade-pr) 🛠 [Adjust upgrade PR settings](https://app.snyk.io/org/cheshirecode/project/1be00237-0d09-4b78-9d78-98b66a025861/settings/integration?utm_source=github&utm_medium=referral&page=upgrade-pr) 🔕 [Ignore this dependency or unsubscribe from future upgrade PRs](https://app.snyk.io/org/cheshirecode/project/1be00237-0d09-4b78-9d78-98b66a025861/settings/integration?pkg=next&utm_source=github&utm_medium=referral&page=upgrade-pr#auto-dep-upgrades)

cheshirecode / nextjs-emotion-boilerplate

[Snyk] Upgrade next from 12.1.1 to 12.3.4 #211

Snyk has created this PR to upgrade next from 12.1.1 to 12.3.4.