change logic when stderr is not console : don't update progress status

but keep warnings and final operation statement.

updated tests/cli-tests/ accordingly

tests/cli-tests/decompression/pass-through.sh.stderr.exact

@@ -1,3 +1,4 @@
+file                 :230.00%   (    10 B =>     23 B, file.zst) 
 zstd: file: unsupported format 
 zstd: file: unsupported format 
 zstd: file: unsupported format