fix: Resolve transient dependency conflict with Microsoft.IdentityModel.Protocols in JwtBearer authentication

[aniket-okta]

Fixes #745

Problem

Applications using Microsoft.AspNetCore.Authentication.JwtBearer alongside Okta [SDK.NET](http://sdk.net/) 8.2.0 encounter a runtime error (IDX10500: Signature validation failed) due to transient dependency mismatches. This occurs because the SDK indirectly references outdated versions of Microsoft.IdentityModel.Protocols and Microsoft.IdentityModel.Protocols.OpenIdConnect, breaking OpenID Connect metadata retrieval.

Solution

• Explicitly reference Microsoft.IdentityModel.Protocols (v8.2.0) and Microsoft.IdentityModel.Protocols.OpenIdConnect (v8.2.0) in the project file to enforce compatibility with JwtBearer 8.x.

Impact

• Restores correct signing key resolution for JWT validation.
• Prevents runtime failures in applications relying on JwtBearer authentication with Okta.

Verification Steps
Validate that IDX10500 errors no longer occur during authentication.

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Why This Works

• The explicit package references override transitive dependencies, ensuring the correct versions of Protocols and OpenIdConnect are used.
• These packages contain critical logic for retrieving OpenID Connect metadata (e.g., signing keys), which resolves the IDX10500 error.