Fix New Relic integration
Fix New Relic integration

This commit upgrades our dependency on Spring Boot back to 0.5.0
snapshots in order to pick up the latest changes to how Boot's
JarLauncher performs classloading. Ultimately, these changes allow
New Relic instrumentation to access and work properly against
application classes.

[Fixes #56036636]

martinlippert/sagan,yhj630520/sagan,eonezhang/sagan,seoilhyun/sagan,dvaughn555/sagan,vizewang/sagan,amit-siddhu/sagan,dkushner/sagan,rwinch/sagan,dlizarra/sagan,garylgh/sagan,gregturn/sagan,yhj630520/sagan,dvaughn555/sagan,TabberGit/sagan,lowtalker/sagan,mbateman/sagan,dsyer/sagan,BHASKARSDEN277GITHUB/sagan,rwinch/sagan,amit-siddhu/sagan,dharmaraju/sagan,andriykonoz/sagan,dvaughn555/sagan,dsyer/sagan,rwinch/sagan,vizewang/sagan,dharmaraju/sagan,spring-io/sagan,eonezhang/sagan,spring-io/sagan,amit-siddhu/sagan,gregturn/sagan,yhj630520/sagan,garylgh/sagan,andriykonoz/sagan,dharmaraju/sagan,dkushner/sagan,dlizarra/sagan,mbateman/sagan,spring-io/sagan,dkushner/sagan,amit-siddhu/sagan,vizewang/sagan,TabberGit/sagan,dlizarra/sagan,martinlippert/sagan,dharmaraju/sagan,garylgh/sagan,seoilhyun/sagan,dlizarra/sagan,martinlippert/sagan,dkushner/sagan,mbateman/sagan,BHASKARSDEN277GITHUB/sagan,BHASKARSDEN277GITHUB/sagan,eonezhang/sagan,BHASKARSDEN277GITHUB/sagan,martinlippert/sagan,dvaughn555/sagan,TabberGit/sagan,seoilhyun/sagan,rwinch/sagan,spring-io/sagan,andriykonoz/sagan,garylgh/sagan,lowtalker/sagan,mbateman/sagan,seoilhyun/sagan,vizewang/sagan,lowtalker/sagan,lowtalker/sagan,gregturn/sagan,dsyer/sagan,andriykonoz/sagan,TabberGit/sagan,yhj630520/sagan,eonezhang/sagan,dsyer/sagan