fix(infra-gitops): downgrade Gitea image tag to 1.25.5 in HelmRelease configuration

flux/infrastructure/infra-gitops/helmrelease-gitea.yaml

@@ -21,7 +21,7 @@ spec:
     postgresql-ha:
       enabled: false
     image:
-      tag: 1.26.2
+      tag: 1.25.5
     ingress:
       enabled: true
       className: nginx