Update to Spring Boot 2.1.0.RELEASE

[rwinch]

Summary

We need to update to Spring Boot 2.1.0.RELEASE This can be done by updating gradle.properties

[raphaelDL]

mine

[raphaelDL]

Here we go [Updated Spring Boot version from 2.1.0.M4 to 2.1.0.RELEASE]
(#6084)

[raphaelDL]

Updated Spring Boot version from 2.1.0.M4 to 2.1.0.RELEASE

[rwinch]

Fixed via #6084

[rwinch]

Thanks again @raphaelDL! This is merged into master. I also backported it via #6086