[skip ci] Fix release date of 8.3.19

Author: adoy

NEWS

@@ -23,7 +23,7 @@ PHP                                                                        NEWS
 - Treewide:
   . Fixed bug GH-17736 (Assertion failure zend_reference_destroy()). (nielsdos)
 
-13 Feb 2025, PHP 8.3.19
+13 Mar 2025, PHP 8.3.19
 
 - BCMath:
   . Fixed bug GH-17398 (bcmul memory leak). (SakiTakamachi)