Added patchnotes

Author: Sukairo-02

changelogs/drizzle-orm/1.0.0-beta.9.md

@@ -1,4 +1,5 @@
 - Switched `MySQL2` default client from `CallbackPool` to `Pool`  
 - `@effect/sql-pg` driver support  
 - Reworked `pg`: `execute`-less core builders, `async`,`effect` `query-builders`,`session`,`preparedQuery` variants  
-- Improved `PgColumn` types: better type performance, simpler declaration, reworked `.array()` to use `.array('[][]')` syntax instead of `.array().array()`  
+- Improved `PgColumn` types: better type performance, simpler declaration, reworked `.array()` to use `.array('[][]')` syntax instead of `.array().array()`  
+- Fixed lack of query result recalculation on pg dynamic update with joins