[to#127]fix ossfile upload_chunk location bug

[karajan1001]

Hello, @idling11

Thanks for your contribution, but because the tests relied on some Github secrets, could you please push the branch directly to repo git@github.com:fsspec/ossfs.git instead of the forked one. The Github secrets can only be used from internal branches. I had given your permission to directly push branches to this repo.

[idling11]

@karajan1001 Ok ,thx for your trust