spring-cloud-security-dependencies:2.1.0.RELEASE depends against spring-security-oauth2-autoconfigure 2.1.0.M4

[habuma]

When building SCS connectors against Greenwich.RELEASE, I discovered that I required a milestone repository in the build to be able to resolve spring-security-oauth2-autoconfigure:2.1.0.M4. I tracked it down to https://github.com/spring-cloud/spring-cloud-security/blob/master/spring-cloud-security-dependencies/pom.xml#L17.

[spencergibb]

https://search.maven.org/artifact/org.springframework.security.oauth.boot/spring-security-oauth2-autoconfigure/2.1.2.RELEASE/jar