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>2.12.2</version>
     </parent>
     <groupId>com.fasterxml.jackson.module</groupId>
     <artifactId>jackson-module-kotlin</artifactId>

release-notes/VERSION-2.x

@@ -14,7 +14,7 @@ Co-maintainers:
 === Releases ===
 ------------------------------------------------------------------------
 
-2.12.1 (not yet released)
+2.12.1 (08-Jan-2021)
 
 #402: Remove implicitly-included `java.base` dep in `module-info.java`
  (reported by UkonnRa@github)