fix(diagnose): fix "gpud scan" (add missing temp db creation)

[gyuho]

No description provided.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 0% with 58 lines in your changes missing coverage. Please review.

Project coverage is 20.05%. Comparing base (cd89e72) to head (8851f67).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
components/diagnose/scan.go	0.00%	47 Missing and 1 partial ⚠️
cmd/gpud/command/command.go	0.00%	5 Missing ⚠️
components/diagnose/options.go	0.00%	4 Missing ⚠️
cmd/gpud/command/scan.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #314      +/-   ##
==========================================
+ Coverage   19.94%   20.05%   +0.11%     
==========================================
  Files         316      316              
  Lines       26531    26548      +17     
==========================================
+ Hits         5292     5325      +33     
+ Misses      20619    20588      -31     
- Partials      620      635      +15     

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[xiang90]

test?

[gyuho]

@xiang90 Now running gpud scan on each e2e test runs. Also, manually tested in GPU machines.

[xiang90]

can we also add some unit test?

[ccding]

lgtm after adding tests