[BUG] postgresql pitr stopTIME is different from the RECOVERABLE-TIME described in the cluster

[JashBook]

Describe the bug
postgresql pitr stopTIME is different from the RECOVERABLE-TIME described in the cluster.

kbcli version
Kubernetes: v1.23.15
KubeBlocks: 0.5.3-beta.6
kbcli: 0.5.3-beta.6

To Reproduce
Steps to reproduce the behavior:

1. create cluster
2. logfile backup
3. see error

➜  kbcli cluster describe cluster-walpjm 
Name: cluster-walpjm	 Created Time: Jun 25,2023 19:52 UTC+0800
NAMESPACE   CLUSTER-DEFINITION   VERSION              STATUS    TERMINATION-POLICY   
default     postgresql           postgresql-12.14.0   Running   WipeOut              

Endpoints:
COMPONENT    MODE        INTERNAL                                                   EXTERNAL   
postgresql   ReadWrite   cluster-walpjm-postgresql.default.svc.cluster.local:5432   <none>     

Topology:
COMPONENT    INSTANCE                      ROLE        STATUS    AZ           NODE                                                           CREATED-TIME                 
postgresql   cluster-walpjm-postgresql-0   primary     Running   us-west1-a   gke-kubeblocks-test-default-pool-77c8b94a-v2xl/10.138.15.240   Jun 25,2023 19:52 UTC+0800   
postgresql   cluster-walpjm-postgresql-1   secondary   Running   us-west1-a   gke-kubeblocks-test-default-pool-77c8b94a-is5q/10.138.15.218   Jun 25,2023 19:52 UTC+0800   

Resources Allocation:
COMPONENT    DEDICATED   CPU(REQUEST/LIMIT)   MEMORY(REQUEST/LIMIT)   STORAGE-SIZE   STORAGE-CLASS   
postgresql   false       100m / 100m          512Mi / 512Mi           data:10Gi      standard-rwo    

Images:
COMPONENT    TYPE         IMAGE                                                      
postgresql   postgresql   registry.cn-hangzhou.aliyuncs.com/apecloud/spilo:12.14.1   

Data Protection:
AUTO-BACKUP   BACKUP-SCHEDULE   TYPE     BACKUP-TTL   LAST-SCHEDULE                RECOVERABLE-TIME                                                
Disabled      <none>            <none>   7d           Jun 25,2023 20:05 UTC+0800   Jun 25,2023 19:55:54 UTC+0800 ~ Jun 25,2023 19:55:54 UTC+0800   

Show cluster events: kbcli cluster list-events -n default cluster-walpjm

➜   kubectl get backups.dataprotection.kubeblocks.io 692c1faf-cluster-walpjm-defaul-logfile  -oyaml
apiVersion: dataprotection.kubeblocks.io/v1alpha1
kind: Backup
metadata:
  annotations:
    dataprotection.kubeblocks.io/target-pod-name: cluster-walpjm-postgresql-0
    kubeblocks.io/cluster-snapshot: '{"metadata":{"name":"cluster-walpjm","namespace":"default","creationTimestamp":null},"spec":{"clusterDefinitionRef":"postgresql","clusterVersionRef":"postgresql-12.14.0","terminationPolicy":"WipeOut","componentSpecs":[{"name":"postgresql","componentDefRef":"postgresql","replicas":2,"resources":{"limits":{"cpu":"100m","memory":"512Mi"},"requests":{"cpu":"100m","memory":"512Mi"}},"volumeClaimTemplates":[{"name":"data","spec":{"accessModes":["ReadWriteOnce"],"resources":{"requests":{"storage":"10Gi"}}}}],"switchPolicy":{"type":"Noop"},"serviceAccountName":"kb-sa-cluster-walpjm"}],"affinity":{"podAntiAffinity":"Preferred","tenancy":"SharedNode"}},"status":{}}'
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"dataprotection.kubeblocks.io/v1alpha1","kind":"Backup","metadata":{"annotations":{},"labels":{"app.kubernetes.io/instance":"cluster-walpjm","dataprotection.kubeblocks.io/backup-type":"logfile","kubeblocks.io/backup-protection":"retain"},"name":"692c1faf-cluster-walpjm-defaul-logfile","namespace":"default"},"spec":{"backupPolicyName":"cluster-walpjm-postgresql-backup-policy","backupType":"logfile"}}
  creationTimestamp: "2023-06-25T11:57:01Z"
  finalizers:
  - dataprotection.kubeblocks.io/finalizer
  generation: 1
  labels:
    app.kubernetes.io/component: postgresql
    app.kubernetes.io/instance: cluster-walpjm
    app.kubernetes.io/managed-by: kubeblocks
    app.kubernetes.io/name: postgresql
    app.kubernetes.io/version: postgresql-12.14.0
    apps.kubeblocks.io/component-name: postgresql
    apps.kubeblocks.io/workload-type: Replication
    apps.kubeblocks.postgres.patroni/role: master
    apps.kubeblocks.postgres.patroni/scope: cluster-walpjm-postgresql-patroni2715afd1
    controller-revision-hash: cluster-walpjm-postgresql-6fd8946858
    dataprotection.kubeblocks.io/backup-type: logfile
    kubeblocks.io/backup-protection: retain
    kubeblocks.io/role: primary
    postgresql-configuration: 8557b89cf7
    statefulset.kubernetes.io/pod-name: cluster-walpjm-postgresql-0
  name: 692c1faf-cluster-walpjm-defaul-logfile
  namespace: default
  resourceVersion: "59764495"
  uid: 183435e9-aca3-405e-b854-1263e0435486
spec:
  backupPolicyName: cluster-walpjm-postgresql-backup-policy
  backupType: logfile
status:
  backupToolName: postgres-pitr
  completionTimestamp: "2023-06-25T12:05:24Z"
  duration: 22s
  expiration: "2023-07-02T12:06:03Z"
  manifests:
    backupLog:
      startTime: "2023-06-25T11:55:54Z"
      stopTime: "2023-06-25T12:04:44Z"
    backupTool:
      filePath: /default/cluster-walpjm-692c1faf-e50f-4710-9123-4cf52715afd1/postgresql/692c1faf-cluster-walpjm-defaul-logfile
  persistentVolumeClaimName: logfile-backup-data
  phase: InProgress
  startTimestamp: "2023-06-25T12:06:03Z"

Expected behavior
postgresql pitr stopTIME is consistent with the RECOVERABLE-TIME described in the cluster.

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[wangyelei]

already fixed at #3854