[BUGFIX] Link to JOB_URL when waiting for input

Makes no sense to link to the detail page.

src/org/typo3/chefci/helpers/Slack.groovy

@@ -35,7 +35,7 @@ class Slack implements Serializable {
 
     def notifyVersionBump() {
         send(
-                message: "${script.env.JOB_NAME} build #${script.env.BUILD_NUMBER} *waiting for input*:\n${script.env.BUILD_URL}",
+                message: "${script.env.JOB_NAME} build #${script.env.BUILD_NUMBER} *waiting for input*:\n${script.env.JOB_URL}",
                 color: 'warning',
         )
     }