[doc] Update release notes (#4393, #4392)

docs/pages/release_notes.md

@@ -15,6 +15,8 @@ This is a {{ site.pmd.release_type }} release.
 ### New and noteworthy
 
 ### Fixed Issues
+* java-errorprone
+  * [#4393](https://github.com/pmd/pmd/issues/4393): \[java] MissingStaticMethodInNonInstantiatableClass false-positive for Lombok's @UtilityClass for classes with non-private fields
 
 ### API Changes
 
@@ -25,6 +27,7 @@ This is a {{ site.pmd.release_type }} release.
 
 ### External Contributions
 * [#4384](https://github.com/pmd/pmd/pull/4384): \[swift] Add more swift 5.x support (#unavailable mainly) - [Richard B.](https://github.com/kenji21) (@kenji21)
+* [#4392](https://github.com/pmd/pmd/pull/4392): \[java] Fix #4393 MissingStaticMethodInNonInstantiatableClass: Fix false-positive for field-only class - [Dawid Ciok](https://github.com/dawiddc) (@dawiddc)
 
 {% endtocmaker %}