Fix OAS embedding issues

[TharmiganK]

Purpose

$Subject

Also removed the deprecation for specifying the OpenAPI document using the service config annotation

Examples

N/A

Checklist

• Linked to an issue
• Updated the changelog
• Added tests
• Updated the spec
• Checked native-image compatibility
• Checked the impact on OpenAPI generation

[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 SonarCloud

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 80.23%. Comparing base (65c4764) to head (3b6bf30).
Report is 1 commits behind head on master.

Files	Patch %	Lines
...odemodifier/contract/ContractInfoModifierTask.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2105      +/-   ##
============================================
+ Coverage     80.22%   80.23%   +0.01%     
  Complexity      668      668              
============================================
  Files           408      408              
  Lines         22914    22914              
  Branches       5266     5266              
============================================
+ Hits          18382    18386       +4     
+ Misses         3405     3396       -9     
- Partials       1127     1132       +5     

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