Update IdentityModel.Tokens to v7.3.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Microsoft.IdentityModel.Tokens	7.3.0 -> 7.3.1
System.IdentityModel.Tokens.Jwt	7.3.0 -> 7.3.1

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Release Notes

AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet (Microsoft.IdentityModel.Tokens)

v7.3.1

Compare Source

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Bug Fixes:

• Replace propertyName with MetadataName constant. See issue #​2471 for details.
• Fix 6x to 7x regression where mixed cases OIDC json was not correctly process. See #​2404 and #​2402 for details.

Performance Improvements:

• Update the benchmark configuration. See issue #​2468.

Documentation:

• Update comment for azp in JsonWebToken. See #​2475 for details.
• Link to breaking change announcement. See [#​2478].
• Fix typo in log message. See [#​2479].

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