Bump guava in /src/it/projects/bom-flattenMode/bom

Bumps [guava](https://github.com/google/guava) from 31.1-jre to 32.0.0-jre.
- [Release notes](https://github.com/google/guava/releases)
- [Commits](https://github.com/google/guava/commits)

---
updated-dependencies:
- dependency-name: com.google.guava:guava
  dependency-type: direct:production
...

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

src/it/projects/bom-flattenMode/bom/pom.xml

@@ -70,7 +70,7 @@
       <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava</artifactId>
-        <version>31.1-jre</version>
+        <version>32.0.0-jre</version>
       </dependency>
       <!-- Library with general utilities as well as I18N and exception support -->
       <dependency>