Add changelog for 3.7.4-RC2

Signed-off-by: Wojciech Mazur <wmazur@virtuslab.com>

Author: WojciechMazur

changelogs/3.7.4-RC2.md

@@ -0,0 +1,28 @@
+# Backported chnages
+
+- Always traverse Inlined.call in linter [#24043](https://github.com/scala/scala3/pull/24043)
+- Deduplicate patches before applying them to sources [#24215](https://github.com/scala/scala3/pull/24215)
+- Fix compiler crash with `-Ymagic-offset-header` [#24124](https://github.com/scala/scala3/pull/24124)
+- Fix completions for named tuples [#24169](https://github.com/scala/scala3/pull/24169)
+- Fix java record varargs field accessor [#24172](https://github.com/scala/scala3/pull/24172)
+- Fix parameter untupling for named tuples (#23440) [#24152](https://github.com/scala/scala3/pull/24152)
+- Fix possible SuspendException thrown when using macros [#24174](https://github.com/scala/scala3/pull/24174)
+- Fix rendering of function-type aliases [#24042](https://github.com/scala/scala3/pull/24042)
+- Ignore warnings when compiletime.testing is imported [#24036](https://github.com/scala/scala3/pull/24036)
+
+# Contributors
+
+Thank you to all the contributors who made this release possible 🎉
+
+According to `git shortlog -sn --no-merges 3.7.4-RC1..3.7.4-RC2` these are:
+
+```
+  5  Wojciech Mazur
+  2  Li Haoyi
+  2  Som Snytt
+  2  Tomasz Godzik
+  1  Florian3k
+  1  Kacper Korban
+  1  Oliver Bračevac
+  1  aherlihy
+```