Update changelog

Author: alamb

changelog/0.55.0.md

@@ -19,7 +19,7 @@ under the License.
 
 # sqlparser-rs 0.55.0 Changelog
 
-This release consists of 53 commits from 25 contributors. See credits at the end of this changelog for more information.
+This release consists of 55 commits from 25 contributors. See credits at the end of this changelog for more information.
 
 **Breaking changes:**
 
@@ -85,6 +85,8 @@ This release consists of 53 commits from 25 contributors. See credits at the end
 - BigQuery: Add support for `BEGIN` [#1718](https://github.com/apache/datafusion-sqlparser-rs/pull/1718) (iffyio)
 - Parse SIGNED INTEGER type in MySQL CAST [#1739](https://github.com/apache/datafusion-sqlparser-rs/pull/1739) (mvzink)
 - Parse MySQL ALTER TABLE ALGORITHM option [#1745](https://github.com/apache/datafusion-sqlparser-rs/pull/1745) (mvzink)
+- Random test cleanups use Expr::value [#1749](https://github.com/apache/datafusion-sqlparser-rs/pull/1749) (alamb)
+- Parse ALTER TABLE AUTO_INCREMENT operation for MySQL [#1748](https://github.com/apache/datafusion-sqlparser-rs/pull/1748) (mvzink)
 
 ## Credits
 
@@ -93,13 +95,13 @@ Thank you to everyone who contributed to this release. Here is a breakdown of co
 ```
     10	Yoav Cohen
      9	Ifeanyi Ubah
-     6	Michael Victor Zink
+     7	Michael Victor Zink
      3	Hans Ott
+     2	Andrew Lamb
      2	Ophir LOJKINE
      2	Paul Grau
      2	Rémy SAISSY
      2	wugeer
-     1	Andrew Lamb
      1	Armin Ronacher
      1	Artem Osipov
      1	AvivDavid-Satori