fix(unlock-protocol-com,paywall): bump @types/next to latest

[clemsos]

Description

For some reasons, master build starting to break with the following error. This fixes it

./src/components/helpers/Link.tsx:11:8
Type error: 'NextLink' cannot be used as a JSX component.
  Its return type 'ReactNode' is not a valid JSX element.
    Type 'string' is not assignable to type 'Element'.

   9 |   if (isInternalLink) {
  10 |     return (
> 11 |       <NextLink href={href} legacyBehavior>
     |        ^
  12 |         <a {...rest} />
  13 |       </NextLink>
  14 |     )

Issues

Fixes #
Refs #

Checklist:

• 1 PR, 1 purpose: my Pull Request applies to a single purpose
• I have commented my code, particularly in hard-to-understand areas
• I have updated the docs to reflect my changes if applicable
• I have added tests (and stories for frontend components) that prove my fix is effective or that my feature works
• I have performed a self-review of my own code
• If my code involves visual changes, I am adding applicable screenshots to this thread

Release Note Draft Snippet

[julien51]

LGTM!