chore: Bump Azure.Identity from 1.17.1 to 1.19.0 (#271)

Updated [Azure.Identity](https://github.com/Azure/azure-sdk-for-net)
from 1.17.1 to 1.19.0.

<details>
<summary>Release notes</summary>

_Sourced from [Azure.Identity's
releases](https://github.com/Azure/azure-sdk-for-net/releases)._

## 1.19.0

## 1.19.0 (2026-03-11)

### Features Added

- Added support in `ClientCertificateCredential` to specify a path in
the form of `cert:/StoreLocation/StoreName/Thumbprint` to refer to a
certificate in the platform certificate store - such as the Windows
Certificate Store on Windows, and the KeyChain on MacOS - instead of a
file on disk. For example to load a certificate from the "My" store in
the "CurrentUser" location use the path
`cert:/CurrentUser/My/E661583E8FABEF4C0BEF694CBC41C28FB81CD870` (A
community contribution, courtesy of
_[fowl2](https://github.com/fowl2)_).

### Other Changes

- Updated `Microsoft.Identity.Client` and
`Microsoft.Identity.Client.Extensions.Msal` dependencies to version
4.83.1.


## 1.18.0

## 1.18.0 (2026-02-25)

### Features Added

- Added experimental `Microsoft.Extensions.Configuration` and
`Microsoft.Extensions.DependencyInjection` integration for Azure SDK
clients. For details, see the [Configuration and Dependency
Injection](https://github.com/Azure/azure-sdk-for-net/blob/release/Azure.Identity_1.18.0/sdk/core/Azure.Core/src/docs/ConfigurationAndDependencyInjection.md)
documentation.

- The `WorkloadIdentityCredentialOptions.IsAzureProxyEnabled` property,
which enables Azure Kubernetes token proxy mode, is only available in
beta releases of this package.

- `AzureDeveloperCliCredential` now parses JSON error output from `azd
auth token` to extract clean error messages instead of including raw
JSON in exceptions. Error messages like
`{"type":"consoleMessage","data":{"message":"ERROR: fetching token:
..."}}` are now displayed as `ERROR: fetching token: ...`.


## 1.18.0-beta.3

## 1.18.0-beta.3 (2026-02-20)

### Breaking Changes

- Renamed
`WorkloadIdentityCredentialOptions.IsAzureKubernetesTokenProxyEnabled`
to `IsAzureProxyEnabled` to follow .NET naming conventions for boolean
properties.

### Bugs Fixed

- Fixed a NullReferenceException that occurred during X509Chain
validation on Linux when using the Identity Bindings feature.

- Disabled MSAL's internal retry logic for
`ConfidentialClientApplication` and `PublicClientApplication` to prevent
double retries when combined with Azure SDK's retry policy. Only the
configured Azure SDK retry policy is applied, avoiding unexpected
additional retry attempts.


Commits viewable in [compare
view](https://github.com/Azure/azure-sdk-for-net/commits/Azure.Identity_1.19.0).
</details>

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</details>

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src/FluentEmail.Graph/FluentEmail.Graph.csproj

@@ -41,7 +41,7 @@ v2.1 Added support for Inline images
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="Azure.Identity" Version="1.17.1" />
+        <PackageReference Include="Azure.Identity" Version="1.19.0" />
         <PackageReference Include="DotNet.ReproducibleBuilds" Version="2.0.2">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>