Bump the dotnet group with 1 update (#48702)

Bumps Azure.Core from 1.48.0 to 1.49.0

---
updated-dependencies:
- dependency-name: Azure.Core
  dependency-version: 1.49.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/azure/sdk/snippets/unit-testing/UnitTestingSampleApp.csproj

@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Azure.Core" Version="1.48.0" />
+    <PackageReference Include="Azure.Core" Version="1.49.0" />
     <PackageReference Include="Azure.Security.KeyVault.Secrets" Version="4.8.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="Moq" Version="[4.20.72]" /> <!-- Context: https://github.com/Azure/azure-sdk-for-net/issues/38111 -->