Build ext/zip as shared library by default on Windows

This allows users to use PECL/zip, which is well maintained and often
brings new features which are not yet available in ext/zip, as drop-in
replacement for the official Windows php-src builds.

Closes GH-8549.

Author: cmb69

NEWS

@@ -77,5 +77,7 @@ PHP                                                                        NEWS
   . add ZipArchive::clearError() method
   . add ZipArchive::getStreamName() method
   . add ZipArchive::getStreamIndex() method
+  . On Windows, the Zip extension is now built as shared library (DLL) by
+    default. (cmb)
 
 <<< NOTE: Insert NEWS from last stable release here prior to actual release! >>>

UPGRADING

@@ -222,6 +222,9 @@ PHP 8.2 UPGRADE NOTES
     the configuration option --with-oci8 has been dropped. --with-oci8-11g,
     --with-oci8-12c and --with-oci8-19 are still supported.
 
+- Zip:
+  . The Zip extension is now built as shared library (DLL) by default.
+
 ========================================
 13. Other Changes
 ========================================

ext/zip/config.w32

@@ -1,6 +1,6 @@
 // vim:ft=javascript
 
-ARG_ENABLE("zip", "ZIP support", "yes");
+ARG_ENABLE("zip", "ZIP support", "yes,shared");
 
 if (PHP_ZIP != "no") {
 	if (CHECK_HEADER_ADD_INCLUDE("zip.h", "CFLAGS_ZIP", PHP_PHP_BUILD + "\\include;" + PHP_EXTRA_INCLUDES) &&