Bump spring-boot.version from 2.5.7 to 2.6.3#16

dependabot[bot] wants to merge 1 commit intodijvz/logging-log4j2:difrom

dependabot/maven/spring-boot.version-2.6.3jvz/logging-log4j2:dependabot/maven/spring-boot.version-2.6.3Copy head branch name to clipboard