Up-to-date version and link in ASM/CGLIB/Objenesis package javadoc

Issue: SPR-16405
Issue: SPR-15600

spring-core/src/main/java/org/springframework/asm/package-info.java

@@ -1,7 +1,7 @@
 /**
  * Spring's repackaging of
- * <a href="http://asm.ow2.org">ASM</a>
- * (for internal use only).
+ * <a href="http://asm.ow2.org">ASM 6.0</a>
+ * (with Spring-specific patches; for internal use only).
  *
  * <p>This repackaging technique avoids any potential conflicts with
  * dependencies on ASM at the application level or from third-party

spring-core/src/main/java/org/springframework/cglib/package-info.java

@@ -1,7 +1,7 @@
 /**
  * Spring's repackaging of
- * <a href="http://cglib.sourceforge.net">CGLIB</a>
- * (for internal use only).
+ * <a href="https://github.com/cglib/cglib">CGLIB 3.2</a>
+ * (with Spring naming strategy; for internal use only).
  *
  * <p>This repackaging technique avoids any potential conflicts with
  * dependencies on CGLIB at the application level or from third-party

spring-core/src/main/java/org/springframework/objenesis/package-info.java

@@ -1,7 +1,7 @@
 /**
  * Spring's repackaging of
- * <a href="http://objenesis.org">Objenesis 2.1</a>
- * (for internal use only).
+ * <a href="http://objenesis.org">Objenesis 2.6</a>
+ * (with SpringObjenesis entry point; for internal use only).
  *
  * <p>This repackaging technique avoids any potential conflicts with
  * dependencies on different Objenesis versions at the application