Make number of pinned_timestamp files to keep in remote configurable. #15248
Description
Is your feature request related to a problem? Please describe
Currently, we keep last 5 pinned_timestamps files in remote store. It is possible that a data node scheduler which is reading the file, the read was delayed due to some issue and at the same time the file is being deleted.
To avoid this, we need a lease mechanism which will prevent the deletion of pinned timestamp file while being read. A short term solution would be to make this value configurable.
Describe the solution you'd like
Reference: #15180 (comment)
Related component
Storage:Remote
Describe alternatives you've considered
No response
Additional context
No response