Update dependency NPOI to 2.7.3 (#1325)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Directory.Packages.props

@@ -743,7 +743,7 @@
 	</ItemGroup>
 	<!-- Excel -->
 	<ItemGroup>
-		<PackageVersion Include="NPOI" Version="2.7.2" />
+		<PackageVersion Include="NPOI" Version="2.7.3" />
 	</ItemGroup>
 	<!-- Github API -->
 	<ItemGroup>