Bump spring-expression from 5.2.13.RELEASE to 5.2.21.RELEASE in /eXperDB-Proxy-Agent#337

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dependabot/maven/eXperDB-Proxy-Agent/org.springframework-spring-expression-5.2.21.RELEASEexperdb/eXperDB-Management:dependabot/maven/eXperDB-Proxy-Agent/org.springframework-spring-expression-5.2.21.RELEASECopy head branch name to clipboard