Prepare for 2.15.0-rc1 release

Author: cowtowncoder

pom.xml

@@ -9,7 +9,7 @@
   <parent>
     <groupId>com.fasterxml.jackson</groupId>
     <artifactId>jackson-base</artifactId>
-    <version>2.15.0-rc1-SNAPSHOT</version>
+    <version>2.15.0-rc1</version>
   </parent>
   <groupId>com.fasterxml.jackson.core</groupId>
   <artifactId>jackson-databind</artifactId>

release-notes/VERSION-2.x

@@ -4,7 +4,7 @@ Project: jackson-databind
 === Releases === 
 ------------------------------------------------------------------------
 
-2.15.0 (not yet released)
+2.15.0-rc1 (18-Mar-2023)
 
 #2536: Add `EnumFeature.READ_ENUM_KEYS_USING_INDEX` to work with
    existing "WRITE_ENUM_KEYS_USING_INDEX"#