Update dependency com.auth0:java-jwt to v3.12.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.auth0:java-jwt	3.10.3 -> 3.12.0

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Release Notes

auth0/java-jwt

### [`v3.12.0`](https://togithub.com/auth0/java-jwt/blob/master/CHANGELOG.md#​3120-httpsgithubcomauth0java-jwttree3120-2020-12-18) [Compare Source](https://togithub.com/auth0/java-jwt/compare/3.11.0...3.12.0) [Full Changelog](https://togithub.com/auth0/java-jwt/compare/3.11.0...3.12.0) **Changed** - Thread-safe classes should be Shared statically [#​462](https://togithub.com/auth0/java-jwt/pull/462) ([LeeHainie](https://togithub.com/LeeHainie)) **Security** - Update jackson-databind to 2.10.5.1 (fixes CVE-2020-25649) [#​463](https://togithub.com/auth0/java-jwt/pull/463) ([overheadhunter](https://togithub.com/overheadhunter)) **Breaking changes** - Target Java 8 [#​455](https://togithub.com/auth0/java-jwt/pull/455) ([lbalmaceda](https://togithub.com/lbalmaceda)) ### [`v3.11.0`](https://togithub.com/auth0/java-jwt/blob/master/CHANGELOG.md#​3110-httpsgithubcomauth0java-jwttree3110-2020-09-25) [Compare Source](https://togithub.com/auth0/java-jwt/compare/3.10.3...3.11.0) [Full Changelog](https://togithub.com/auth0/java-jwt/compare/3.10.3...3.11.0) **Added** - Add ability to verify claim presence [#​442](https://togithub.com/auth0/java-jwt/pull/442) ([jimmyjames](https://togithub.com/jimmyjames)) - Add Support for secp256k1 algorithms (AKA ES256K) [#​439](https://togithub.com/auth0/java-jwt/pull/439) ([jimmyjames](https://togithub.com/jimmyjames)) **Fixed** - Fix and document thread-safety [#​427](https://togithub.com/auth0/java-jwt/pull/427) ([lbalmaceda](https://togithub.com/lbalmaceda)) - Wrap IllegalArgumentException into JWTDecodeException [#​426](https://togithub.com/auth0/java-jwt/pull/426) ([lbalmaceda](https://togithub.com/lbalmaceda))

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