Bump org.mnode.ical4j:ical4j from 3.2.14 to 3.2.15

Bumps [org.mnode.ical4j:ical4j](https://github.com/ical4j/ical4j) from 3.2.14 to 3.2.15.
- [Changelog](https://github.com/ical4j/ical4j/blob/develop/CHANGELOG.md)
- [Commits](ical4j/ical4j@ical4j-3.2.14...ical4j-3.2.15)

---
updated-dependencies:
- dependency-name: org.mnode.ical4j:ical4j
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -243,7 +243,7 @@
     <dependency>
       <groupId>org.mnode.ical4j</groupId>
       <artifactId>ical4j</artifactId>
-      <version>3.2.14</version>
+      <version>3.2.15</version>
     </dependency>
 
     <dependency>