updated the changeset for this pr

Signed-off-by: Steve Zhang <huigang.zhang@gmail.com>

.changeset/curly-news-report.md

@@ -2,20 +2,4 @@
 '@backstage/plugin-kubernetes-backend': patch
 ---
 
-**BREAKING** The kubernetes backend now can handle when req.header is undefined.
-
-These changes are **required** to `plugins/kubernetes-backend/src/service/KubernetesProxy.ts`
-
-```diff
--- a/plugins/kubernetes-backend/src/service/KubernetesProxy.ts
-+++ b/plugins/kubernetes-backend/src/service/KubernetesProxy.ts
-@@ -172,7 +172,7 @@ export class KubernetesProxy {
-             )?.toString(),
-           };
-
--          const authHeader = req.header(HEADER_KUBERNETES_AUTH);
-+          const authHeader = req.header?.(HEADER_KUBERNETES_AUTH);
-           if (authHeader) {
-             req.headers.authorization = authHeader;
-           } else {
-```
+Fixed a bug where the proxy handler did not properly handle a missing header