Prepare for 2.12.4 release

Author: cowtowncoder

pom.xml

@@ -8,7 +8,7 @@
   <parent>
     <groupId>com.fasterxml.jackson</groupId>
     <artifactId>jackson-base</artifactId>
-    <version>2.12.4-SNAPSHOT</version>
+    <version>2.12.4</version>
   </parent>
 
   <groupId>com.fasterxml.jackson.core</groupId>

release-notes/VERSION-2.x

@@ -14,7 +14,7 @@ JSON library.
 === Releases ===
 ------------------------------------------------------------------------
 
-2.12.4 (not yet released)
+2.12.4 (06-Jul-2021)
 
 #702: `ArrayOutOfBoundException` at `WriterBasedJsonGenerator.writeString(Reader, int)`
  (reported by Jeffrey Y)