Bump spring.version from 3.2.8.RELEASE to 5.2.0.RELEASE in /opensource-dubbo#1

dependabot[bot] wants to merge 1 commit intomastershirdrn/opensource:masterfrom

dependabot/maven/opensource-dubbo/spring.version-5.2.0.RELEASEshirdrn/opensource:dependabot/maven/opensource-dubbo/spring.version-5.2.0.RELEASECopy head branch name to clipboard