chore(dependencies): Autobump spinnakerGradleVersion (#1585) (#1592)

Co-authored-by: root <root@2dd4f76bffcc>
(cherry picked from commit cc9d9a0)

Co-authored-by: spinnakerbot <spinbot@spinnaker.io>

gradle.properties

@@ -4,7 +4,7 @@ includeProviders=basic,iap,ldap,oauth2,saml,x509
 korkVersion=7.136.1
 kotlinVersion=1.4.0
 org.gradle.parallel=true
-spinnakerGradleVersion=8.23.0
+spinnakerGradleVersion=8.24.0
 targetJava11=true
 
 # To enable a composite reference to a project, set the