feat: allow headers pass through

[gk-kindred]

• Pass Candidate message headers to decision message for certifier.
• Pass Decision message headers to on-commit publish messages in messenger.

[codecov]

Codecov Report

Attention: 45 lines in your changes are missing coverage. Please review.

Comparison is base (c76a702) 57.08% compared to head (1be6893) 57.36%.

❗ Current head 1be6893 differs from pull request most recent head 9926606. Consider uploading reports for the commit 9926606 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #89      +/-   ##
==========================================
+ Coverage   57.08%   57.36%   +0.27%     
==========================================
  Files         115      115              
  Lines        5663     5747      +84     
==========================================
+ Hits         3233     3297      +64     
- Misses       2430     2450      +20     

Files	Coverage Δ
.../talos_certifier/src/services/certifier_service.rs	91.56% <100.00%> (+0.65%)	⬆️
..._certifier/src/services/decision_outbox_service.rs	89.74% <100.00%> (+1.33%)	⬆️
..._certifier/src/services/tests/certifier_service.rs	100.00% <100.00%> (ø)
...fier/src/services/tests/decision_outbox_service.rs	82.62% <100.00%> (+0.60%)	⬆️
...ckages/talos_certifier_adapters/src/kafka/utils.rs	78.46% <ø> (ø)
...ier/src/services/tests/message_receiver_service.rs	76.40% <96.77%> (+1.70%)	⬆️
packages/talos_messenger_core/src/core.rs	0.00% <0.00%> (ø)
...ges/talos_certifier_adapters/src/kafka/producer.rs	0.00% <0.00%> (ø)
...s_certifier_adapters/src/mock_certifier_service.rs	0.00% <0.00%> (ø)
...ages/talos_messenger_actions/src/kafka/producer.rs	0.00% <0.00%> (ø)
... and 4 more

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[fmarek-kindred]

Did you notice any change in performance?

[gk-kindred]

@fmarek-kindred , I ran tests, and didn't notice any noticeable degradation in performance