[Bug] [website] Checkpoint-Storage description is incorrect.

[michalrys]

Purpose of this pull request

Resolves #5848 →

https://seatunnel.incubator.apache.org/docs/2.3.3/seatunnel-engine/checkpoint-storage
Among the HDFS section, the kerberosKeytab configuration item is incorrect.
Among them, the seatunnel.hadoop.dfs.client.failover.proxy.provider.usdp-bing configuration item has an extra double quotation mark at the end.

Does this PR introduce any user-facing change?

no

How was this patch tested?

before:

after:

Check list

* [ ] If any new Jar binary package adding in your PR, please add License Notice according
New License Guide

• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
  * [ ] If you are contributing the connector code, please check that the following files are updated:
  1. Update change log that in connector document. For more details you can refer to connector-v2
  2. Update plugin-mapping.properties and add new connector information in it
  3. Update the pom file of seatunnel-dist
• Update the release-note.

[Hisoka-X]

LGTM Thanks @michalrys

[michalrys]

Great, thanks ;)