Bump DocumentFormat.OpenXml from 2.16.0 to 2.17.1

Bumps [DocumentFormat.OpenXml](https://github.com/OfficeDev/Open-XML-SDK) from 2.16.0 to 2.17.1.
- [Release notes](https://github.com/OfficeDev/Open-XML-SDK/releases)
- [Changelog](https://github.com/OfficeDev/Open-XML-SDK/blob/main/CHANGELOG.md)
- [Commits](dotnet/Open-XML-SDK@v2.16.0...v2.17.1)

---
updated-dependencies:
- dependency-name: DocumentFormat.OpenXml
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

ClosedXML.Examples/ClosedXML.Examples.csproj

@@ -17,7 +17,7 @@
 
 	<ItemGroup>
 		<ProjectReference Include="..\ClosedXML\ClosedXML.csproj" />
-		<PackageReference Include="DocumentFormat.OpenXml" Version="2.16.0" />
+		<PackageReference Include="DocumentFormat.OpenXml" Version="2.17.1" />
 		<PackageReference Include="morelinq" Version="3.3.2" />
 		<PackageReference Include="SonarAnalyzer.CSharp" Version="8.38.0.46746">
 		  <PrivateAssets>all</PrivateAssets>

ClosedXML/ClosedXML.csproj

@@ -47,7 +47,7 @@
 		<None Include="Product.png" Pack="true" PackagePath="\" />
 	</ItemGroup>
 	<ItemGroup>
-		<PackageReference Include="DocumentFormat.OpenXml" Version="2.16.0" />
+		<PackageReference Include="DocumentFormat.OpenXml" Version="2.17.1" />
 		<PackageReference Include="ExcelNumberFormat" Version="1.1.0" />
 		<PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1">
 		  <PrivateAssets>all</PrivateAssets>