feat(negotiation): add correlationId to new RemoteMessages

[juliapampus]

What this PR changes/adds

Adds correlationId to ContractAgreementVerificationMessage and ContractNegotiationEventMessage.

Why it does that

The dataspace protocol delegates need the negotiationId to build the URL for the request.

Further notes

Sry, missed that in #2595

Linked Issue(s)

Closes #2617

Checklist

• added appropriate tests?
• performed checkstyle check locally?
• added/updated copyright headers?
• documented public classes/methods?
• added/updated relevant documentation?
• assigned appropriate label? (exclude from changelog with label no-changelog)
• formatted title correctly? (take a look at the CONTRIBUTING and Etiquette for pull requests for details)

[codecov-commenter]

Codecov Report

Patch coverage: 20.00% and project coverage change: -0.03 ⚠️

Comparison is base (d407174) 64.56% compared to head (c1175c8) 64.54%.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2618      +/-   ##
==========================================
- Coverage   64.56%   64.54%   -0.03%     
==========================================
  Files         890      890              
  Lines       18248    18258      +10     
  Branches     1087     1087              
==========================================
+ Hits        11782    11784       +2     
- Misses       6032     6040       +8     
  Partials      434      434              

Impacted Files	Coverage Δ
...greement/ContractAgreementVerificationMessage.java	0.00% <0.00%> (ø)
...pes/agreement/ContractNegotiationEventMessage.java	0.00% <0.00%> (ø)
...iation/ConsumerContractNegotiationManagerImpl.java	92.46% <100.00%> (+0.05%)	⬆️
...iation/ProviderContractNegotiationManagerImpl.java	95.03% <100.00%> (+0.03%)	⬆️

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