fix: separate parsing logic of VCDM2.0 and SD-JWT VC Credentials

[nanderstabel]

Description of change

This change separates the parsing of VCDM2 SD-JWTs (vc+sd-jwt) from SD-JWT VCs (dc+sd-jwt), and prevents the error below (the vct claim is REQUIRED in SD-JWT VC but not for SD-JWT secured VCDM2 Credentials).

#[test]
fn test() {
    let test = "eyJ0eXAiOiJ2YytzZC1qd3QiLCJraWQiOiJkaWQ6d2ViOmxvY2FsaG9zdCUzQTMwMzMjQXM1cjRVeG9fWjREV19XLW9BUVNURTRLT1hhMnVWeUJRYUNna3VTUkhwWSIsImFsZyI6IkVTMjU2In0.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.1OKm-xew82vumRIhm8fQAoZkflViUokvQ1M2VMdWvHuI-RUQWMsABZEqnoDrOvAiuI8JkjPDeZVo0nDEg-8S5Q~WyJVcGFQWlV2SkMyMnE2NEVMNG4yWWFuTDA4amxTTGMxZ1pPLWNFNHR6IiwiZG9iIiwiMTk4Mi0wMS0wMSJd~WyJwRmo1S01jYURPaDBFQ0ZYSWRwZXR5OHF6cm9jZ1RoX0JQb05HUjFNIiwiZmlyc3RfbmFtZSIsIkZlcnJpcyJd~WyJaSGZMSnlGQU1XaE51UnJNNlgwbzR5X21fRnYwd3JjR3JIN1h1X0ZJIiwibGFzdF9uYW1lIiwiQ3JhYm1hbiJd~";

    let test = SdJwtVc::parse(test).unwrap();
}
// called `Result::unwrap()` on an `Err` value: MissingClaim("vct")

Links to any relevant issues

• feat: issue SD-JWT VC credentials ssi-agent#278

How the change has been tested

• Updated the test_verifiable_credential_record_try_from_sd_jwt_vc test
• Added the test_verifiable_credential_record_try_from_vcdm2_sd_jwt test
• Validated that all test pass in the ITB DIIPv5 Test Suite

Definition of Done checklist

Add an x to the boxes that are relevant to your changes.

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[Oran-Dan]

I havent reviewed the tests yet as I would first like to discuss/address the current comments

[Oran-Dan]

Awesomesauce

The base branch was changed.