Prepare for 2.12.1 release

Author: cowtowncoder

pom.xml

@@ -9,7 +9,7 @@
   <parent>
     <groupId>com.fasterxml.jackson</groupId>
     <artifactId>jackson-base</artifactId>
-    <version>2.12.1-SNAPSHOT</version>
+    <version>2.12.1</version>
   </parent>
   <groupId>com.fasterxml.jackson.dataformat</groupId>
   <artifactId>jackson-dataformat-xml</artifactId>

release-notes/VERSION-2.x

@@ -4,7 +4,7 @@ Project: jackson-dataformat-xml
 === Releases ===
 ------------------------------------------------------------------------
 
-2.12.1 (not yet released)
+2.12.1 (08-Jan-2021)
 
 #435: After upgrade to 2.12.0, NPE when deserializing an empty element to `ArrayList`
  (reported by Francesco C)