SSL certificate verification failure during backup?

gitlab helm version 6.6.4
gitlab version 15.6.4

I encountered an error after backup was completed:

...
2023-05-03 13:56:01 +0000 -- Dumping repositories ... done
Bucket not found: registry. Skipping backup of registry ...
Bucket not found: gitlab-uploads. Skipping backup of uploads ...
Bucket not found: gitlab-artifacts. Skipping backup of artifacts ...
Bucket not found: git-lfs. Skipping backup of lfs ...
Bucket not found: gitlab-packages. Skipping backup of packages ...
Bucket not found: gitlab-mr-diffs. Skipping backup of external_diffs ...
Bucket not found: gitlab-terraform-state. Skipping backup of terraform_state ...
Bucket not found: gitlab-pages. Skipping backup of pages ...
Bucket not found: gitlab-ci-secure-files. Skipping backup of ci_secure_files ...
Packing up backup tar
ERROR: SSL certificate verification failure: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate (_ssl.c:1131)
command terminated with exit code 77

这是toolbox的配置

gitlab:
  toolbox:
    persistence:
      enabled: true
      storageClass: test-cephfs
      size: 1Ti

I don’t understand why SSL errors occur when packaging. How can I fix them? Or close ssl?