update changeset, fix pr nits

Signed-off-by: Andrew Tran <atran@brex.com>

.changeset/early-bees-think.md

@@ -1,5 +1,5 @@
 ---
-'@backstage/plugin-kubernetes-backend': minor
+'@backstage/plugin-kubernetes-backend': patch
 ---
 
 Added apiVersionOverrides config to allow for specifying api versions to use for kubernetes objects

docs/features/kubernetes/configuration.md

@@ -225,6 +225,13 @@ Overrides for the API versions used to make requests for the corresponding
 objects. If using a legacy Kubernetes version, you may use this config to
 override the default API versions to ones that are supported by your cluster.
 
+```yaml
+---
+kubernetes:
+  apiVersionOverrides:
+    cronjobs: 'v1beta1'
+```
+
 ### Role Based Access Control
 
 The current RBAC permissions required are read-only cluster wide, for the

plugins/kubernetes-backend/src/service/KubernetesBuilder.ts

@@ -259,7 +259,7 @@ export class KubernetesBuilder {
       objectTypesToFetch = objectTypesToFetch ?? DEFAULT_OBJECTS;
 
       for (const obj of objectTypesToFetch) {
-        if (apiVersionOverrides.getOptionalString(obj.objectType)) {
+        if (apiVersionOverrides.has(obj.objectType)) {
           obj.apiVersion = apiVersionOverrides.getString(obj.objectType);
         }
       }