Bump com.github.spullara.mustache.java:compiler from 0.9.11 to 0.9.13

Bumps [com.github.spullara.mustache.java:compiler](https://github.com/spullara/mustache.java) from 0.9.11 to 0.9.13.
- [Commits](spullara/mustache.java@mustache.java-0.9.11...mustache.java-0.9.13)

---
updated-dependencies:
- dependency-name: com.github.spullara.mustache.java:compiler
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

buildSrc/build.gradle

@@ -67,7 +67,7 @@ dependencies {
     implementation 'io.projectreactor:reactor-core:3.6.5'
     implementation 'com.apollographql.apollo:apollo-runtime:2.5.14'
     implementation 'com.github.ben-manes:gradle-versions-plugin:0.51.0'
-    implementation 'com.github.spullara.mustache.java:compiler:0.9.11'
+    implementation 'com.github.spullara.mustache.java:compiler:0.9.13'
     implementation 'io.spring.javaformat:spring-javaformat-gradle-plugin:0.0.41'
     implementation 'io.spring.nohttp:nohttp-gradle:0.0.11'
     implementation 'net.sourceforge.htmlunit:htmlunit:2.70.0'