Bump spring-webmvc from 5.1.3.RELEASE to 5.2.20.RELEASE in /sample-spring#15

dependabot[bot] wants to merge 1 commit intomasterstinymac/samples:masterfrom

dependabot/maven/sample-spring/org.springframework-spring-webmvc-5.2.20.RELEASEstinymac/samples:dependabot/maven/sample-spring/org.springframework-spring-webmvc-5.2.20.RELEASECopy head branch name to clipboard