Hey - thanks for the PR! I will be merging this before the next release. I just need to update the documentation in the primary ODC repo - I'll be leaving this open as a reminder until I get the documentation updated.

Just to make sure I am creating the correct documentation - for this to work people would have to create their own web hook for slack to receive and post these messages?

Yes, you have to create an incoming webhook and you have to specify that in the slack configuration block. In this example the slackweb hook url is a system propertie
dependencyCheck { format = 'ALL' failBuildOnCVSS = 7 suppressionFiles = ["$rootDir/gradle/owasp/exclude.xml"] outputDirectory="build/reports/owasp" slack { def slackWebhookUrl = project.gradle.startParameter.systemPropertiesArgs['slackWebhookUrl'] enabled = slackWebhookUrl?true:false webhookUrl = slackWebhookUrl } }