Move SAMLSSOServiceProviderDO certificate retrieval to SAMLSSOServiceProviderManager layer

[Osara-B]

• Move SAMLSSOServiceProviderDO certificate retrieval to SAMLSSOServiceProviderManager layer
• Use addServiceProvider(SAMLSSOServiceProviderDO serviceProviderDO, int tenantId) in place of uploadServiceProvider(SAMLSSOServiceProviderDO serviceProviderDO, int tenantId)
  Related to,

• Carbon registry usage removal from SAML product-is#20992

[codecov]

Codecov Report

Attention: Patch coverage is 20.51282% with 31 lines in your changes missing coverage. Please review.

Project coverage is 45.96%. Comparing base (a08e390) to head (413c5f0).
Report is 70 commits behind head on master.

Files with missing lines	Patch %	Lines
...n/identity/core/SAMLSSOServiceProviderManager.java	22.85%	20 Missing and 7 partials ⚠️
...ore/dao/RegistrySAMLSSOServiceProviderDAOImpl.java	0.00%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6293      +/-   ##
============================================
+ Coverage     45.89%   45.96%   +0.06%     
- Complexity    14420    14586     +166     
============================================
  Files          1654     1662       +8     
  Lines        103215   104487    +1272     
  Branches      18203    18354     +151     
============================================
+ Hits          47375    48031     +656     
- Misses        49062    49612     +550     
- Partials       6778     6844      +66     

Flag	Coverage Δ
unit	29.20% <20.51%> (+0.24%)	⬆️

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud