[Snyk] Security upgrade com.google.guava:guava from 23.2-jre to 30.0-android

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `maven` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • pom.xml

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	561/1000 Why? Recently disclosed, Has a fix available, CVSS 5.5	Information Disclosure SNYK-JAVA-COMGOOGLEGUAVA-1015415	com.google.guava:guava: 23.2-jre -> 30.0-android	No	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Check the changes in this PR to ensure they won't cause issues with your project.

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[t6pc-bot]

Can one of the admins verify this patch?

[maricaantonacci]

guava version updated in PR#405. This PR breaks chronos

[maricaantonacci]

Dependency updated in #432