Upgrade to Concourse Release Scripts 0.2.1

This release fixes a bug where Spring Boot specifics were baked in the
application itself.

ci/images/setup.sh

@@ -11,7 +11,7 @@ rm -rf /var/lib/apt/lists/*
 
 curl https://raw.githubusercontent.com/spring-io/concourse-java-scripts/v0.0.3/concourse-java.sh > /opt/concourse-java.sh
 
-curl --output /opt/concourse-release-scripts.jar https://repo.spring.io/release/io/spring/concourse/releasescripts/concourse-release-scripts/0.2.0/concourse-release-scripts-0.2.0.jar
+curl --output /opt/concourse-release-scripts.jar https://repo.spring.io/release/io/spring/concourse/releasescripts/concourse-release-scripts/0.2.1/concourse-release-scripts-0.2.1.jar
 
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 # JAVA