feat: update dependencies and fix API compatibility issues

[Copilot]

fix: #121

The SDK fails to deserialize responses from recent Casdoor versions due to missing fields and lacks dependency declarations for annotations in use.

Changes

API Compatibility

• Added @JsonIgnoreProperties(ignoreUnknown = true) to all entity classes and CasdoorResponse to handle API evolution
• Added sub field to CasdoorResponse for new API response format

Dependency Updates

• Jackson: 2.13.3 → 2.18.2
• OkHttp: 4.9.3 → 4.12.0
• Nimbus JOSE JWT: 9.10 → 9.41.1
• JUnit Jupiter: 5.8.2 → 5.11.4
• Added JSR-305 (3.0.2) for nullability annotations previously undeclared

Annotations

Replaced JetBrains annotations (not in pom.xml) with JSR-305:

• org.jetbrains.annotations.NotNull → javax.annotation.Nonnull
• org.jetbrains.annotations.Nullable → javax.annotation.Nullable

Breaking Change with Backward Compatibility

Created correctly-spelled Provider class. Provier is now deprecated and extends Provider to maintain compatibility:

@Deprecated
public class Provier extends Provider {
    // Existing code continues to work
}

Users should migrate to Provider in future updates.

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.00%. Comparing base (942509d) to head (0dff9d3).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
.../main/java/org/casbin/casdoor/entity/Provider.java	0.00%	10 Missing ⚠️
.../org/casbin/casdoor/util/http/CasdoorResponse.java	0.00%	3 Missing ⚠️
...c/main/java/org/casbin/casdoor/entity/Provier.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##           master    #122   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files          93      94    +1     
  Lines        1390    1397    +7     
  Branches       36      36           
======================================
- Misses       1390    1397    +7     

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[github-actions]

🎉 This PR is included in version 1.41.0 🎉

The release is available on:

• GitHub release
• v1.41.0

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