rel: prepare v2.4.2 (#1017)

## Which problem is this PR solving?

- Releasing #1010

## Short description of the changes

- update CHANGELOG and RELEASE_NOTES
- no documentation updates
- no dependency license changes

CHANGELOG.md

@@ -1,5 +1,15 @@
 # Refinery Changelog
 
+## 2.4.2 2024-02-28
+
+This is a bug fix release for returning a improperly formatted OTLP error responses.
+OTLP clients receiving the improper response would show errors about parsing the response, masking the error message within the response which complicated solving data send issues.
+This release is a recommended upgrade for anyone sending OTLP data to Refinery.
+
+### Fixes
+
+- fix: Bring OTLP HTTP error responses in line with spec. (#1010) | [Tyler Helmuth](https://github.com/TylerHelmuth)
+
 ## 2.4.1 2024-02-26
 
 This is a bug fix release for matching fields in the root span context.

RELEASE_NOTES.md

@@ -2,6 +2,12 @@
 
 While [CHANGELOG.md](./CHANGELOG.md) contains detailed documentation and links to all the source code changes in a given release, this document is intended to be aimed at a more comprehensible version of the contents of the release from the point of view of users of Refinery.
 
+## Version 2.4.2
+
+This is a bug fix release for returning a improperly formatted OTLP error responses.
+OTLP clients receiving the improper response would show errors about parsing the response, masking the error message within the response which complicated solving data send issues.
+This release is a recommended upgrade for anyone sending OTLP data to Refinery.
+
 ## Version 2.4.1
 
 This is a bug fix release for matching fields in the root span context.