Property "renew_token_without_revoking_existing" not being honored causing stuck threads

[KD23243]

Proposed changes in this pull request

• Skip checking for existing token when renew_without_revoking_existing is enabled, the binding type is set to "none," and generate a random UUID as the binding reference. This avoids thread stuck issues.
• Support for reading the token type from the following Deployment.toml configurations and correctly retrieves the token type to initialize the "renew_token_without_revoking_existing" flow.

//Adding custom token issuers
[[oauth.extensions.token_types]]
name = "CustomTokenIssuer"
issuer = "org.wso2.carbon.identity.extensions.CustomJWTTokenIssuer"
persist_access_token_alias = true
type = "jwt"

//Changing the default token issuer
[oauth.extensions]
token_generator = "org.wso2.carbon.identity.extensions.CustomJWTTokenIssuer"
token_type = "jwt"

Resolves

• Property "renew_token_without_revoking_existing" is not being honored causing stuck threads wso2/product-is#20994
• JWT token performance issue when renew_token_without_revoking_existing is enabled wso2/product-is#21122
• "renew_token_without_revoking_existing" not working for custom jwt token issuers wso2/product-is#21355

When should this PR be merged

This PR should be merged after merging the following PR.

• Add config to read TokenType for custom token issuers wso2/carbon-identity-framework#6126

[codecov]

Codecov Report

Attention: Patch coverage is 48.14815% with 28 lines in your changes missing coverage. Please review.

Project coverage is 55.43%. Comparing base (dc41ff9) to head (480cd3f).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
...dentity/oauth/config/OAuthServerConfiguration.java	20.00%	12 Missing ⚠️
...dlers/grant/AbstractAuthorizationGrantHandler.java	66.66%	1 Missing and 10 partials ⚠️
...o2/carbon/identity/oauth2/model/TokenIssuerDO.java	16.66%	5 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2625      +/-   ##
============================================
+ Coverage     53.35%   55.43%   +2.07%     
+ Complexity     8589     8150     -439     
============================================
  Files           632      632              
  Lines         52956    47163    -5793     
  Branches       9069     8300     -769     
============================================
- Hits          28253    26143    -2110     
+ Misses        20597    17285    -3312     
+ Partials       4106     3735     -371     

Flag	Coverage Δ
unit	38.69% <48.14%> (+0.09%)	⬆️

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