Merge pull request OpenXmlDev#25 from Codeuctivity/dependabot/nuget/DocumentFormat.OpenXml-2.14.0

Bump DocumentFormat.OpenXml from 2.13.1 to 2.14.0

Author: stesee

OpenXmlPowerTools/OpenXmlPowerTools.csproj

@@ -35,7 +35,7 @@
     <None Remove="Properties\**" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="DocumentFormat.OpenXml" Version="2.13.1" />
+    <PackageReference Include="DocumentFormat.OpenXml" Version="2.14.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>