Update release notes wrt #3082

Author: cowtowncoder

release-notes/CREDITS-2.x

@@ -1320,3 +1320,7 @@ Asaf Romano (asaf-romano@github)
   * Reported #3080: configOverrides(boolean.class) silently ignored, whereas .configOverride(Boolean.class)
     works for both primitives and boxed boolean values
    (2.13.0)
+
+David Hoffman (dhofftgt@github)
+  * Contributed #3082: Dont track unknown props in buffer if `ignoreAllUnknown` is true
+   (2.13.0)

release-notes/VERSION-2.x

@@ -20,6 +20,8 @@ Project: jackson-databind
 #3080: configOverrides(boolean.class) silently ignored, whereas .configOverride(Boolean.class)
   works for both primitives and boxed boolean values
  (reported by Asaf R)
+#3082: Dont track unknown props in buffer if `ignoreAllUnknown` is true
+ (contributed by David H)
 - Fix to avoid problem with `BigDecimalNode`, scale of `Integer.MIN_VALUE` (see
   [dataformats-binary#264] for details)