Bump spring-expression from 4.3.18.RELEASE to 5.2.21.RELEASE in /radplanbio-core#85

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dependabot/maven/radplanbio-core/org.springframework-spring-expression-5.2.21.RELEASEddRPB/rpb:dependabot/maven/radplanbio-core/org.springframework-spring-expression-5.2.21.RELEASECopy head branch name to clipboard