deps: Bump the microsoft-packages group with 1 update

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Updated Microsoft.Identity.Web from 4.11.0 to 4.12.2.

Release notes

Sourced from Microsoft.Identity.Web's releases.

4.12.2

Bug fixes

• Make the Microsoft.Identity.Client.KeyAttestation dependency conditional on modern .NET (.NETCoreApp) targets. It transitively pulls the native-only Microsoft.Azure.Security.KeyGuardAttestation package, which ships no .NET Framework/netstandard-compatible assets and broke NuGet restore for .NET Framework (packages.config) projects. Microsoft.Identity.Web.Certificateless now multi-targets, and .NET Framework consumers use the netstandard2.0 asset without this dependency. See #​3894.

4.12.1

Bug fixes

• Preserve ManagedIdentity when converting AcquireTokenOptions to TokenAcquisitionOptions in TokenAcquirer. Previously the ITokenAcquirer.GetTokenForAppAsync / GetTokenForUserAsync paths silently dropped ManagedIdentity and fell back to the confidential-client path, breaking managed-identity mTLS PoP (e.g. MISE Native). See #​3914.

Behavior changes

• Sidecar: outbound HTTP redirects suppressed by default. The sidecar no longer follows outbound HTTP redirects; a new opt-in Sidecar:AllowOutboundRedirects flag (default false) restores the previous behavior. See #​3906.
• Sidecar: per-request isolation of downstream API options. Downstream API options resolved from the singleton IOptionsMonitor are now cloned per request (including fresh ExtraParameters / ExtraHeaderParameters / ExtraQueryParameters dictionaries), preventing request-scoped values from leaking across requests or racing under concurrency. See #​3919.

Fundamentals

• Build the solution in the PR pipeline before running tests. See #​3911.
• Restore OWIN 5.7.1 packages from the internal IDDP feed in the PR pipeline. See #​3912.
• Run the PR pipeline on the Wilson pool so integration/E2E tests can access the lab KeyVault. See #​3913.

4.12.0

New features

• Implement IAuthorizationHeaderProvider2 (from Microsoft.Identity.Abstractions 12.3.0) on DefaultAuthorizationHeaderProvider and the public BaseAuthorizationHeaderProvider, exposing the metadata-rich CreateAuthorizationHeaderInformation* surface (returning OperationResult<AuthorizationHeaderInformation, AuthorizationHeaderError>) with binding-certificate propagation. DownstreamApi and MicrosoftIdentityMessageHandler now prefer IAuthorizationHeaderProvider2 for mTLS PoP and soft-deprecate the bound-only IBoundAuthorizationHeaderProvider path (kept as a fallback for source/binary compatibility). See #​3899.
• Populate TokenAcquisitionMetadata.ExpiresOn on AcquireTokenResult from the MSAL AuthenticationResult.ExpiresOn value. See #​3905.

Bug fixes

• Finalize the DownstreamApi request (headers, query parameters, content, and customizations) before creating the authorization header, adding Authorization only after signing so request-binding providers do not include it in their signed material. See #​3902.

Dependencies updates

• Update Microsoft.Identity.Abstractions to 12.4.0. See #​3899, #​3905.
• Update MSAL.NET (Microsoft.Identity.Client / Microsoft.Identity.Client.KeyAttestation) to 4.85.2. See #​3896.
• Update Microsoft.IdentityModel.Protocols.WsFederation (Microsoft.Identity.Web.OWIN) to 5.7.1. See #​3900.

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