Update NEWS/UPGRADING for __sleep/wakeup() soft-deprecation

Author: nicolas-grekas

NEWS

@@ -2,6 +2,10 @@ PHP                                                                        NEWS
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 ?? ??? ????, PHP 8.5.0RC2
 
+- Core:
+  . Revert deprecation of __sleep() and __wakeup().
+    They're now soft-deprecated. (Nicolas Grekas)
+
 - Opcache
   . Fixed segfault in function JIT due to NAN to bool warning. (Girgias)
 

UPGRADING

@@ -401,10 +401,11 @@ PHP 8.5 UPGRADE NOTES
     $_GET or $_SERVER['QUERY_STRING'] to access the information, after verifying
     that the usage is safe.
     RFC: https://wiki.php.net/rfc/deprecations_php_8_5#deprecate_the_register_argc_argv_ini_directive
-  . The __sleep() and __wakeup() magic methods have been deprecated. The
+  . The __sleep() and __wakeup() magic methods have been soft-deprecated. The
     __serialize() and __unserialize() magic methods should be used instead,
     or at the same time if compatibility with PHP 7 is required.
     RFC: https://wiki.php.net/rfc/deprecations_php_8_5#deprecate_the_sleep_and_wakeup_magic_methods
+    RFC: https://wiki.php.net/rfc/soft-deprecate-sleep-wakeup
 
 - Curl:
   . The curl_close() function has been deprecated, as CurlHandle objects are