Bump compiler from 0.9.5 to 0.9.6

Bumps [compiler](https://github.com/spullara/mustache.java) from 0.9.5 to 0.9.6.
- [Release notes](https://github.com/spullara/mustache.java/releases)
- [Commits](spullara/mustache.java@mustache.java-0.9.5...mustache.java-0.9.6)

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

build.gradle

@@ -62,7 +62,7 @@ dependencies {
     compile group: 'commons-io', name: 'commons-io', version: '2.6'
     compile group: 'joda-time', name: 'joda-time', version: '2.9.4'
     compile group: 'io.fabric8', name: 'kubernetes-client', version: '3.1.8'
-    compile group: 'com.github.spullara.mustache.java', name: 'compiler', version: '0.9.5'
+    compile group: 'com.github.spullara.mustache.java', name: 'compiler', version: '0.9.6'
     compile group: 'org.freemarker', name: 'freemarker', version: '2.3.23'
 
     testCompile group: 'junit', name: 'junit', version: '4.12'