Prepare for 2.13.0 release

Author: cowtowncoder

pom.xml

@@ -8,7 +8,7 @@
     <parent>
         <groupId>com.fasterxml.jackson</groupId>
         <artifactId>jackson-base</artifactId>
-        <version>2.13.0-SNAPSHOT</version>
+        <version>2.13.0</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 ===
 ------------------------------------------------------------------------
 
-2.13.0 (not yet released)
+2.13.0 (30-Sep-2021)
 
 #438: Fixed mapping failure when `private` `companion object` is named
  (reported, fix contributed by k163377@github)