std.tar: add strip components error to diagnostics

This was the only kind of error which was raised in pipeToFileSystem and
not added to Diagnostics.
Shell tar silently ignores paths which are stripped out when used with
`--strip-components` switch. This enables that same behavior, errors
will be collected in diagnostics but caller is free to ignore that type
of diagnostics errors.
Enables use case where caller knows structure of the tar file and want
to extract only some deeply nested folders ignoring upper files/folders.

Fixes: #17620 by giving caller options:
- not provide diagnostic and get errors
- provide diagnostics and analyze errors
- provide diagnostics and ignore errors

0 files changed, 0 insertions, 0 deletions