Fix copy file without mode

[lucklove]

Signed-off-by: lucklove gnu.crazier@gmail.com

What problem does this PR solve?

We copy file with tiuputils.CopyFile, which is dup with tiuputils.Copy and both of them forget to change the mode of created file.

What is changed and how it works?

call os.Chmod after create target.

Check List

Tests

• Unit test

Release notes:

NONE

[codecov-io]

Codecov Report

Merging #844 into master will increase coverage by 23.55%.
The diff coverage is 37.50%.

@@             Coverage Diff             @@
##           master     #844       +/-   ##
===========================================
+ Coverage   25.51%   49.06%   +23.55%     
===========================================
  Files         244      261       +17     
  Lines       17608    18995     +1387     
===========================================
+ Hits         4492     9320     +4828     
+ Misses      12462     8205     -4257     
- Partials      654     1470      +816     

Flag	Coverage Δ
#cluster	39.20% <25.00%> (?)
#dm	25.29% <33.33%> (?)
#integrate	43.82% <25.00%> (+26.51%)	⬆️
#playground	22.22% <40.00%> (+0.05%)	⬆️
#tiup	10.80% <40.00%> (+0.02%)	⬆️
#unittest	20.87% <37.50%> (+0.07%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
components/cluster/command/import.go	18.07% <0.00%> (ø)
pkg/cluster/manager.go	59.13% <0.00%> (+58.04%)	⬆️
pkg/utils/ioutil.go	47.57% <50.00%> (+10.40%)	⬆️
pkg/localdata/profile.go	39.10% <100.00%> (+1.67%)	⬆️
pkg/utils/mock/mock.go	7.69% <0.00%> (-0.31%)	⬇️
pkg/cluster/operation/scale_in.go	52.08% <0.00%> (ø)
pkg/logger/logger.go	100.00% <0.00%> (ø)
pkg/cluster/operation/action.go	49.65% <0.00%> (ø)
pkg/cluster/operation/download.go	36.84% <0.00%> (ø)
pkg/cluster/operation/telemetry.go	0.00% <0.00%> (ø)
... and 155 more

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