Prepare for 2.13.4 release

Author: cowtowncoder

pom.xml

@@ -8,7 +8,7 @@
     <parent>
         <groupId>com.fasterxml.jackson</groupId>
         <artifactId>jackson-base</artifactId>
-        <version>2.13.4-SNAPSHOT</version>
+        <version>2.13.4</version>
     </parent>
     <groupId>com.fasterxml.jackson.module</groupId>
     <artifactId>jackson-module-kotlin</artifactId>

release-notes/VERSION-2.x

@@ -18,7 +18,7 @@ Co-maintainers:
 
 No changes since 2.13
 
-2.13.4 (not yet released)
+2.13.4 (03-Sep-2022)
 
 #556: Broken Kotlin 1.4 support in 2.13.2
  (contributed by Dmitry S)