suppress dirty logs during import libraries

[Somefive]

What this PR does / why we need it:

The vela CLI tools prints "getCPUInfo" error for darwin/arm64 architecture which confuses Mac M1 users. Besides, the "throttling request" message logged during the import process is not necessary for the CLI tool. This PR suppress these two loggings during the init stage. The logging is recovered when the import process is over and the CLI starts to execute.

Which issue(s) this PR fixes:

Fixes #1924

Special notes for your reviewer:

The solution is to suppress loggings from containerd lib for "getCPUInfo" log and klog for "throttling request" in client-go. The klog logging is brought back when the CLI command starts execution.

[codecov]

Codecov Report

Merging #1991 (8a7091e) into master (7161959) will increase coverage by 4.72%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1991      +/-   ##
==========================================
+ Coverage   59.09%   63.81%   +4.72%     
==========================================
  Files         111      158      +47     
  Lines       10998    14892    +3894     
==========================================
+ Hits         6499     9504    +3005     
- Misses       3804     4422     +618     
- Partials      695      966     +271     

Flag	Coverage Δ
e2e-rollout-tests	28.82% <ø> (?)
e2etests	38.11% <ø> (?)
unittests	59.13% <ø> (+0.04%)	⬆️

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

Impacted Files	Coverage Δ
...core.oam.dev/v1alpha2/componentdefinition_types.go	0.00% <0.00%> (ø)
apis/core.oam.dev/v1alpha2/core_types.go	0.00% <0.00%> (ø)
...m.dev/v1alpha2/envbinding/envbinding_controller.go	52.00% <0.00%> (ø)
apis/standard.oam.dev/v1alpha1/register.go	100.00% <0.00%> (ø)
apis/core.oam.dev/v1alpha1/register.go	100.00% <0.00%> (ø)
pkg/utils/env/env.go	0.00% <0.00%> (ø)
...roller/core.oam.dev/v1alpha2/envbinding/binding.go	62.87% <0.00%> (ø)
apis/core.oam.dev/v1beta1/application_types.go	20.00% <0.00%> (ø)
pkg/appfile/config/store.go	0.00% <0.00%> (ø)
...is/core.oam.dev/condition/zz_generated.deepcopy.go	40.00% <0.00%> (ø)
... and 102 more

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