fix: typescript example supporting strict w/ version >= 4.4

[Octember]

fixes #32015

In typescript 4.4, errors were changed to unknown type instead of any. With strict mode enabled, this breaks the with-typescript example as err.message isn't valid.

Thanks! my first PR here 😄

Bug

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• Integration tests added
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Feature

• Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
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Documentation / Examples

• Make sure the linting passes by running yarn lint

[ijjk]

It looks like this also needs to be updated here

next.js/examples/with-typescript/pages/users/[id].tsx

Line 58 in 5747435

} catch (err) {

to resolve the linked issue

[balazsorban44]

This line needs an update as well @Octember

next.js/examples/with-typescript/pages/users/[id].tsx

Line 58 in 5747435

} catch (err) {