Prepare for 2.16.1 release

Author: cowtowncoder

pom.xml

@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.fasterxml.jackson</groupId>
     <artifactId>jackson-base</artifactId>
-    <version>2.16.1-SNAPSHOT</version>
+    <version>2.16.1</version>
   </parent>
   <groupId>com.fasterxml.jackson.dataformat</groupId>
   <artifactId>jackson-dataformats-binary</artifactId>

release-notes/VERSION-2.x

@@ -14,7 +14,7 @@ Active maintainers:
 === Releases ===
 ------------------------------------------------------------------------
 
-2.16.1 (not yet released)
+2.16.1 (24-Dec-2023)
 
 #303: `NullPointerException` in `IonParser.nextToken()`
  (reported by @ZanderHuang)