Replace tar_csv.tar.gz with gzipped tar

[ginggs]

tar was not compressed previously

[jreback]

cc @gfyoung

[jreback]

(pandas) bash-3.2$ ls pandas/tests/io/parser/data/
iris.csv                salaries.csv.bz2        salaries.csv.zip        tar_csv.tar             test1.csv.bz2           test_mmap.csv           tips.csv.gz             utf16_ex_small.zip
items.jsonl             salaries.csv.gz         sauron.SHIFT_JIS.csv    tar_csv.tar.gz          test1.csv.gz            tips.csv                unicode_series.csv
salaries.csv            salaries.csv.xz         sub_char.csv            test1.csv               test2.csv               tips.csv.bz2            utf16_ex.txt

?

[ginggs]

@jreback try ls -l, you'll see tar_csv.tar and tar_csv.tar.gz are both 10240 bytes in size.

[codecov]

Codecov Report

Merging #22269 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #22269   +/-   ##
=======================================
  Coverage   92.08%   92.08%           
=======================================
  Files         169      169           
  Lines       50694    50694           
=======================================
  Hits        46682    46682           
  Misses       4012     4012

Flag	Coverage Δ
#multiple	90.49% <ø> (ø)	⬆️
#single	42.34% <ø> (ø)	⬆️

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[WillAyd]

Thanks @ginggs !