Bump HikariCP from 4.0.2 to 4.0.3

Bumps [HikariCP](https://github.com/brettwooldridge/HikariCP) from 4.0.2 to 4.0.3.
- [Release notes](https://github.com/brettwooldridge/HikariCP/releases)
- [Changelog](https://github.com/brettwooldridge/HikariCP/blob/dev/CHANGES)
- [Commits](brettwooldridge/HikariCP@HikariCP-4.0.2...HikariCP-4.0.3)

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -14,7 +14,7 @@ repositories {
 dependencies {
     compileOnly "com.enonic.xp:script-api:${xpVersion}"
     compile 'org.jdbi:jdbi:2.78'
-    compile 'com.zaxxer:HikariCP:4.0.2'
+    compile 'com.zaxxer:HikariCP:4.0.3'
 
     testCompile 'com.h2database:h2:1.4.200'
     testCompile 'junit:junit:4.13.2'