Update changelogs

Author: nfrisby

ouroboros-consensus-diffusion/changelog.d/20250307_082223_nick.frisby_debug_genesis_test_failure.md

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+<!--
+A new scriv changelog fragment.
+
+Uncomment the section that is right (remove the HTML comment wrapper).
+-->
+
+<!--
+### Patch
+
+- A bullet item for the Patch category.
+
+-->
+<!--
+### Non-Breaking
+
+- A bullet item for the Non-Breaking category.
+
+-->
+
+### Breaking
+
+- Added a new CSJ tracer to ChainSync client interface.
+- Renamed the existing tracer in `Ouroboros.Consensus.Node.Tracers.Tracers`.

ouroboros-consensus/changelog.d/20250307_082219_nick.frisby_debug_genesis_test_failure.md

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+<!--
+A new scriv changelog fragment.
+
+Uncomment the section that is right (remove the HTML comment wrapper).
+-->
+
+<!--
+### Patch
+
+- A bullet item for the Patch category.
+
+-->
+<!--
+### Non-Breaking
+
+- A bullet item for the Non-Breaking category.
+
+-->
+
+### Breaking
+
+- Added a new CSJ tracer to ChainSync client interface.