Bump spring.version from 4.1.2.RELEASE to 5.2.7.RELEASE in /highcharts/lib_hicharts/exporting-server/java/highcharts-export#2

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dependabot/maven/highcharts/lib_hicharts/exporting-server/java/highcharts-export/spring.version-5.2.7.RELEASEinstedd/ests:dependabot/maven/highcharts/lib_hicharts/exporting-server/java/highcharts-export/spring.version-5.2.7.RELEASECopy head branch name to clipboard