feat: fix cuddle_releaser

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/cuddle-ci/src/cuddle_file.rs

@@ -13,7 +13,7 @@ pub struct CuddleVars {
     pub service: String,
     pub registry: String,
 
-    pub clusters: CuddleClusters,
+    pub clusters: Option<CuddleClusters>,
 }
 
 #[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
@@ -116,7 +116,7 @@ scripts:
             vars: CuddleVars {
                 service: "infrastructure-example".into(),
                 registry: "kasperhermansen".into(),
-                clusters: CuddleClusters(clusters),
+                clusters: Some(CuddleClusters(clusters)),
             },
             deployment: Some(crate::cuddle_file::CuddleDeployment {
                 registry: "git@git.front.kjuulh.io:kjuulh/clank-cluster".into(),