RealBasicVSR模型执行报错

## Bug Report - 故障报告
RealBasicVSR模型执行报错
### Decription - 问题描述
执行bash dist_train.sh configs/real_basicvsr/realbasicvsr_c64b20_1x30x8_lr5e-5_150k_reds.py 8
报错
 certificate verify failed: unable to get local issuer certificate (_ssl.c:1091)

### Env Info - 环境信息
容器镜像：20221205.1014-centos-7.8.2003-x86_64-10.2-python3.7
### Error logs - 错误日志
```bash
2022-12-07 02:10:30,378 - mmedit - INFO - Set random seed to 0, deterministic: False
2022-12-07 02:10:30,434 - mmedit - INFO - load checkpoint from http path: https://download.openmmlab.com/mmediting/restorers/basicvsr/spynet_20210409-c6c1bd09.pth
Downloading: "https://download.openmmlab.com/mmediting/restorers/basicvsr/spynet_20210409-c6c1bd09.pth" to /root/.cache/torch/hub/checkpoints/spynet_20210409-c6c1bd09.pth
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/urllib/request.py", line 1350, in do_open
    encode_chunked=req.has_header('Transfer-encoding'))
  File "/usr/local/lib/python3.7/http/client.py", line 1281, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/local/lib/python3.7/http/client.py", line 1327, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.7/http/client.py", line 1276, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/local/lib/python3.7/http/client.py", line 1036, in _send_output
    self.send(msg)
  File "/usr/local/lib/python3.7/http/client.py", line 976, in send
    self.connect()
  File "/usr/local/lib/python3.7/http/client.py", line 1451, in connect
    server_hostname=server_hostname)
  File "/usr/local/lib/python3.7/ssl.py", line 423, in wrap_socket
    session=session
  File "/usr/local/lib/python3.7/ssl.py", line 870, in _create
    self.do_handshake()
  File "/usr/local/lib/python3.7/ssl.py", line 1139, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1091)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/majorli/repos/deepsparkhub/cv/super_resolution/real_basicVSR/pytorch/mmcv/utils/registry.py", line 52, in build_from_cfg
    return obj_cls(**args)
  File "/majorli/repos/deepsparkhub/cv/super_resolution/real_basicVSR/pytorch/mmedit/models/backbones/sr_backbones/real_basicvsr_net.py", line 63, in __init__
    spynet_pretrained)
  File "/majorli/repos/deepsparkhub/cv/super_resolution/real_basicVSR/pytorch/mmedit/models/backbones/sr_backbones/basicvsr_net.py", line 39, in __init__
    self.spynet = SPyNet(pretrained=spynet_pretrained)
  File "/majorli/repos/deepsparkhub/cv/super_resolution/real_basicVSR/pytorch/mmedit/models/backbones/sr_backbones/basicvsr_net.py", line 247, in __init__
    load_checkpoint(self, pretrained, strict=True, logger=logger)
  File "/majorli/repos/deepsparkhub/cv/super_resolution/real_basicVSR/pytorch/mmcv/runner/checkpoint.py", line 528, in load_checkpoint
    checkpoint = _load_checkpoint(filename, map_location, logger)
  File "/majorli/repos/deepsparkhub/cv/super_resolution/real_basicVSR/pytorch/mmcv/runner/checkpoint.py", line 467, in _load_checkpoint
    return CheckpointLoader.load_checkpoint(filename, map_location, logger)
  File "/majorli/repos/deepsparkhub/cv/super_resolution/real_basicVSR/pytorch/mmcv/runner/checkpoint.py", line 245, in load_checkpoint
    return checkpoint_loader(filename, map_location)
  File "/majorli/repos/deepsparkhub/cv/super_resolution/real_basicVSR/pytorch/mmcv/runner/checkpoint.py", line 285, in load_from_http
    filename, model_dir=model_dir, map_location=map_location)
  File "/opt/apps/local/lib64/python3/dist-packages/torch/hub.py", line 586, in load_state_dict_from_url
    download_url_to_file(url, cached_file, hash_prefix, progress=progress)
  File "/opt/apps/local/lib64/python3/dist-packages/torch/hub.py", line 452, in download_url_to_file
    u = urlopen(req)
  File "/usr/local/lib/python3.7/urllib/request.py", line 222, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/local/lib/python3.7/urllib/request.py", line 525, in open
    response = self._open(req, data)
  File "/usr/local/lib/python3.7/urllib/request.py", line 543, in _open
    '_open', req)
  File "/usr/local/lib/python3.7/urllib/request.py", line 503, in _call_chain
    result = func(*args)
  File "/usr/local/lib/python3.7/urllib/request.py", line 1393, in https_open
    context=self._context, check_hostname=self._check_hostname)
  File "/usr/local/lib/python3.7/urllib/request.py", line 1352, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1091)>

```

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