Going for v1.7.6 release

Author: nazuke

SEOMacroscopeEngine/SEOMacroscopeEngine.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="DocumentFormat.OpenXml" Version="2.8.1" />
+    <PackageReference Include="DocumentFormat.OpenXml" Version="2.9.0" />
     <PackageReference Include="ExCSS" Version="2.0.6" />
     <PackageReference Include="FastMember.Signed" Version="1.4.1" />
     <PackageReference Include="HtmlAgilityPack" Version="1.8.14" />