Bump zip4j from 2.8.0 to 2.9.1 in /tools/zephyr-maven-plugin

Bumps [zip4j](https://github.com/srikanth-lingala/zip4j) from 2.8.0 to 2.9.1.
- [Release notes](https://github.com/srikanth-lingala/zip4j/releases)
- [Commits](srikanth-lingala/zip4j@v2.8.0...v2.9.1)

---
updated-dependencies:
- dependency-name: net.lingala.zip4j:zip4j
  dependency-type: direct:production
...

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

tools/zephyr-maven-plugin/pom.xml

@@ -132,7 +132,7 @@
     <dependency>
       <groupId>net.lingala.zip4j</groupId>
       <artifactId>zip4j</artifactId>
-      <version>2.8.0</version>
+      <version>2.9.1</version>
     </dependency>