SpringBoot Avoid running deployment integration tests when there have been no material changes to the war that's deployed

The war file that's deployed is an input of the intTest task isn't reproducible and input isn't configured with any custom normalisation. As a result, the war file is considered to be different each time the build runs so the deployment integration tests run on every build even if nothing's actually changed. We should either make the war file reproducible or customise the input's normalizer.