[misc] bump 2.7.6 version

Author: rusher

pom.xml

@@ -60,7 +60,7 @@
   <artifactId>mariadb-java-client</artifactId>
   <packaging>jar</packaging>
   <name>mariadb-java-client</name>
-  <version>2.7.6-SNAPSHOT</version>
+  <version>2.7.6</version>
   <description>JDBC driver for MariaDB and MySQL</description>
   <url>https://mariadb.com/kb/en/mariadb/about-mariadb-connector-j/</url>