Update dependency com.github.spullara.mustache.java:compiler to v0.9.13

Author: renovate[bot]

plugin-maven/build.gradle

@@ -50,7 +50,7 @@ dependencies {
 	testImplementation "org.assertj:assertj-core:${VER_ASSERTJ}"
 	testImplementation "org.mockito:mockito-core:${VER_MOCKITO}"
 	testImplementation "com.diffplug.durian:durian-io:${VER_DURIAN}"
-	testImplementation 'com.github.spullara.mustache.java:compiler:0.9.10'
+	testImplementation 'com.github.spullara.mustache.java:compiler:0.9.13'
 	testImplementation 'org.owasp.encoder:encoder:1.2.3'
 	testImplementation "org.apache.maven:maven-plugin-api:${VER_MAVEN_API}"
 	testImplementation "org.eclipse.aether:aether-api:${VER_ECLIPSE_AETHER}"