Prepare for 5.2.0 release.

CHANGES

@@ -1,5 +1,11 @@
 HikariCP Changes
 
+Changes in 5.2.0
+
+ * fixed #2152 duplicate connection in try with resources clause caused close() being called twice on each connection.
+
+ * minor debug logging enhancements
+
 Changes in 5.1.0
 
  * fixed #1907 re-added automatic.module.name that was lost along the way

README.md

@@ -37,7 +37,7 @@ _**Java 11+** maven artifact:_
 <dependency>
    <groupId>com.zaxxer</groupId>
    <artifactId>HikariCP</artifactId>
-   <version>5.1.0</version>
+   <version>5.2.0</version>
 </dependency>
 ```
 _Java 8 maven artifact (*maintenance mode*):_

pom.xml

@@ -35,7 +35,7 @@
 
    <groupId>com.zaxxer</groupId>
    <artifactId>HikariCP</artifactId>
-   <version>5.1.1-SNAPSHOT</version>
+   <version>5.2.0-SNAPSHOT</version>
    <packaging>bundle</packaging>
 
    <name>HikariCP</name>