*: set timeout's type from int64 to uint64

[9547]

What problem does this PR solve?

fix #813

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release notes:

NONE

[codecov-commenter]

Codecov Report

Merging #818 into master will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #818      +/-   ##
==========================================
+ Coverage   52.56%   52.63%   +0.06%     
==========================================
  Files         262      262              
  Lines       18850    18850              
==========================================
+ Hits         9909     9921      +12     
+ Misses       7388     7381       -7     
+ Partials     1553     1548       -5     

Flag	Coverage Δ
#cluster	44.73% <100.00%> (+0.09%)	⬆️
#dm	25.32% <100.00%> (-0.07%)	⬇️
#integrate	47.78% <100.00%> (+0.06%)	⬆️
#playground	22.22% <ø> (ø)
#tiup	10.93% <ø> (ø)
#unittest	18.56% <100.00%> (ø)

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

Impacted Files	Coverage Δ
components/dm/ansible/import.go	61.98% <ø> (ø)
pkg/cluster/ansible/config.go	0.00% <ø> (ø)
pkg/cluster/ansible/inventory.go	54.16% <ø> (ø)
pkg/cluster/ansible/service.go	3.64% <ø> (ø)
pkg/cluster/manager.go	66.66% <ø> (ø)
pkg/cluster/operation/action.go	51.51% <ø> (ø)
pkg/cluster/operation/destroy.go	59.42% <ø> (ø)
pkg/cluster/operation/operation.go	78.26% <ø> (ø)
pkg/cluster/operation/scale_in.go	52.08% <ø> (ø)
pkg/cluster/spec/instance.go	65.87% <ø> (ø)
... and 18 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update ab2232a...1b66bce. Read the comment docs.