[Snyk] Fix for 5 vulnerabilities

[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
	599/1000 Why? Has a fix available, CVSS 7.7	Deserialization of Untrusted Data SNYK-JAVA-COMGOOGLECODEGSON-1730327	com.google.protobuf:protobuf-java-util: 3.11.1 -> 3.20.0	No	No Known Exploit
	721/1000 Why? Proof of Concept exploit, Has a fix available, High severity	Information Disclosure SNYK-JAVA-COMGOOGLEGUAVA-1015415	com.google.protobuf:protobuf-java-util: 3.11.1 -> 3.20.0	No	Proof of Concept
	589/1000 Why? Has a fix available, CVSS 7.5	Denial of Service (DoS) SNYK-JAVA-COMGOOGLEPROTOBUF-2331703	com.google.protobuf:protobuf-java: 3.11.1 -> 3.16.1 com.google.protobuf:protobuf-java-util: 3.11.1 -> 3.20.0	No	No Known Exploit
	554/1000 Why? Has a fix available, CVSS 6.8	Timing Attack SNYK-JAVA-ORGAPACHEKAFKA-1540737	org.apache.kafka:connect-api: 1.0.0 -> 2.7.2	Yes	No Known Exploit
	484/1000 Why? Has a fix available, CVSS 5.4	Access Restriction Bypass SNYK-JAVA-ORGAPACHEKAFKA-451568	org.apache.kafka:connect-api: 1.0.0 -> 2.7.2	Yes	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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