Update README.md

Author: DataboxDeploy

src/README.md

@@ -115,6 +115,6 @@ vendor/bin/phpunit
 This PHP package is automatically generated by the [OpenAPI Generator](https://openapi-generator.tech) project:
 
 - API version: `0.4.1`
-    - Package version: `2.1.1`
+    - Package version: `2.1.2`
     - Generator version: `7.6.0`
 - Build package: `org.openapitools.codegen.languages.PhpClientCodegen`