exp claim doesnt support scientific notation

[ajayd942]

Checklist

• I have looked into the Readme and Examples, and have not found a suitable solution or answer.
• I have looked into the API documentation and have not found a suitable solution or answer.
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Description

If we have a jwt token, with exp claim value as

"exp": 1.733162101e+26,

the library fails to decode the token. We get a JWTDecodeException with error "The claim 'exp' contained a non-numeric date value."

According the RFC on JWT(https://datatracker.ietf.org/doc/html/rfc7519#section-2), a NumericDate should adhere to IEEE Std 1003, according to which scientific notation representation is valid.

Reproduction

1. Create a jwt token with exp claim in scientific notation.
2. Try to decode the token. It will fail with "The claim 'exp' contained a non-numeric date value."

Additional context

No response

java-jwt version

4.4.0

Java version

17