Bump Microsoft.Graph from 5.105.0 to 6.0.3 (#387)

---
updated-dependencies:
- dependency-name: Microsoft.Graph
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]

GraphOrgExample/GraphOrgExample.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Azure.Identity" Version="1.21.0" />
-    <PackageReference Include="Microsoft.Graph" Version="5.105.0" />
+    <PackageReference Include="Microsoft.Graph" Version="6.0.3" />
     <PackageReference Include="Microsoft.Identity.Client" Version="4.84.0" />
     <PackageReference Include="Microsoft.Identity.Web.MicrosoftGraph" Version="4.9.0" />
     <PackageReference Include="Microsoft.Identity.Web.UI" Version="4.9.0" />