docs: update maven version number for README.md (#605)

Author: codeboyzhou

README.md

@@ -43,7 +43,7 @@ To run Playwright simply add following dependency to your Maven project:
 <dependency>
   <groupId>com.microsoft.playwright</groupId>
   <artifactId>playwright</artifactId>
-  <version>1.12.0</version>
+  <version>1.14.1</version>
 </dependency>
 ```