Fix min balance for API quotaCredits to be optional

[BryanMLima]

Description

This PR aims to fix the current behavior of the min_balance parameter of the quotaCredits API. This parameter is considered optional in the API documentation; however, when using the API, it is not possible to add credits without specifying the minimum balance for the account. Therefore, this behavior was fixed. If the minimum balance is not specified it is considered as 0.

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)

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?

This was tested in a local lab using the API quotaCredits without specifying the min_balance field. The API was executed with no errors.

[codecov]

Codecov Report

Merging #6691 (7838870) into main (201f066) will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #6691   +/-   ##
=========================================
  Coverage      5.87%    5.87%           
- Complexity     3934     3936    +2     
=========================================
  Files          2454     2454           
  Lines        242683   242682    -1     
  Branches      37978    37978           
=========================================
+ Hits          14261    14265    +4     
+ Misses       226843   226838    -5     
  Partials       1579     1579           

Impacted Files	Coverage Δ
...apache/cloudstack/api/command/QuotaCreditsCmd.java	67.56% <ø> (+1.77%)	⬆️
...apache/cloudstack/syslog/AlertsSyslogAppender.java	58.75% <0.00%> (+2.25%)	⬆️

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[DaanHoogland]

code lgtm.

[JoaoJandre]

CLGTM

[GutoVeronezi]

CLGTM

[GutoVeronezi]

@blueorangutan package

[blueorangutan]

@GutoVeronezi a Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔️ el7 ✔️ el8 ✔️ debian ✔️ suse15. SL-JID 4158

[DaanHoogland]

@blueorangutan test

[blueorangutan]

@DaanHoogland a Trillian-Jenkins test job (centos7 mgmt + kvm-centos7) has been kicked to run smoke tests

[blueorangutan]

Trillian test result (tid-4869)
Environment: kvm-centos7 (x2), Advanced Networking with Mgmt server 7
Total time taken: 44155 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr6691-t4869-kvm-centos7.zip
Smoke tests completed. 101 look OK, 0 have errors
Only failed tests results shown below:

Test	Result	Time (s)	Test File