Bump gson from 2.8.9 to 2.9.0

Bumps [gson](https://github.com/google/gson) from 2.8.9 to 2.9.0.
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/master/CHANGELOG.md)
- [Commits](google/gson@gson-parent-2.8.9...gson-parent-2.9.0)

---
updated-dependencies:
- dependency-name: com.google.code.gson:gson
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -29,7 +29,7 @@ SPDX-License-Identifier: Apache-2.0
         <quarkus.platform.version>2.7.1.Final</quarkus.platform.version>
         <slf4j.version>1.7.36</slf4j.version>
         <powsybl.sld.version>2.7.0</powsybl.sld.version>
-        <gson.version>2.8.9</gson.version>
+        <gson.version>2.9.0</gson.version>
         <openpojo.version>0.9.1</openpojo.version>
     </properties>