Merge pull request #23931 from drodil/signals_auth_skip

fix: allow unauthenticated signals connection to fix 401

.changeset/ninety-toys-bake.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-signals-backend': patch
+---
+
+Fix unauthorized signals connection by allowing unauthenticated requests

plugins/signals-backend/src/plugin.ts

@@ -58,7 +58,7 @@ export const signalsPlugin = createBackendPlugin({
           }),
         );
         httpRouter.addAuthPolicy({
-          path: '/health',
+          path: '/',
           allow: 'unauthenticated',
         });
       },