server: fix template type of ISO uploaded from local

[weizhouapache]

Description

This PR should fix #12104

a regression of #11682

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 17.62%. Comparing base (b869913) to head (710f035).

Files with missing lines	Patch %	Lines
...n/java/com/cloud/template/TemplateManagerImpl.java	0.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               4.22   #12587      +/-   ##
============================================
- Coverage     17.62%   17.62%   -0.01%     
  Complexity    15663    15663              
============================================
  Files          5915     5915              
  Lines        531171   531173       +2     
  Branches      64938    64939       +1     
============================================
- Hits          93601    93599       -2     
- Misses       427031   427033       +2     
- Partials      10539    10541       +2     

Flag	Coverage Δ
uitests	3.71% <ø> (ø)
unittests	18.69% <0.00%> (-0.01%)	⬇️

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