Bump guava from 25.1-jre to 31.1-jre

Bumps [guava](https://github.com/google/guava) from 25.1-jre to 31.1-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>

Author: dependabot[bot]

core/pom.xml

@@ -153,7 +153,7 @@
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
             <!-- Old version for velocity -->
-            <version>25.1-jre</version>
+            <version>31.1-jre</version>
             <!-- Exclude compile time dependencies not marked as such on upstream  -->
             <exclusions>
                 <exclusion>