Update the changelog for 1.11.0

Author: stof

CHANGES.md

@@ -1,3 +1,18 @@
+1.11.0 / 2023-12-09
+===================
+
+New features:
+
+* Added support for `symfony/css-selector` 7
+* Added constants for the supported key modifiers
+* Improved types to help static analysis
+* Added parameter types for most methods
+
+Testsuite:
+
+* Added CI jobs for PHP 8.2 and 8.3
+* Added static analysis in our CI
+
 1.10.0 / 2022-03-28
 ===================