Update changelog for 2.3.0-1 release

debian/changelog

+php-http-httplug (2.3.0-1) unstable; urgency=medium
+
+  * Fix d/watch after hosting change
+  * New upstream version 2.3.0
+  * Use dh-sequence-phpcomposer instead of --with phpcomposer
+  * Generate phpabtpl at build time
+  * Update Standards-Version to 4.6.1
+  * Update watch file format version to 4.
+
+ -- David Prévot <taffit@debian.org>  Mon, 20 Jun 2022 15:44:49 +0200
+
 php-http-httplug (2.2.0-1) unstable; urgency=medium
 
   [ Graham Campbell ]