Update the InnoSetup dependency to v6.3.1

There is actually v6.3.3 already, but it does not seem to have
propagated to nuget.org yet.

While at it, use a centrally-defined property instead of repeating the
version number several times.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

src/windows/Installer.Windows/Installer.Windows.csproj

@@ -7,6 +7,7 @@
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <EnableDefaultItems>false</EnableDefaultItems>
     <PayloadPath>$(PlatformOutPath)Installer.Windows\bin\$(Configuration)\net472\win-x86</PayloadPath>
+    <InnoSetupVersion>6.3.1</InnoSetupVersion>
   </PropertyGroup>
 
   <ItemGroup>
@@ -18,16 +19,16 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Tools.InnoSetup" Version="6.0.5" />
+    <PackageReference Include="Tools.InnoSetup" Version="$(InnoSetupVersion)" />
   </ItemGroup>
 
   <!-- Implicit SDK targets import (so we can override the default targets below) -->
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk" />
 
   <Target Name="CoreCompile" Condition="'$(OSPlatform)'=='windows'">
     <PropertyGroup>
-      <InnoSetupCommandSystem>"$(NuGetPackageRoot)Tools.InnoSetup\6.0.5\tools\ISCC.exe" /DPayloadDir="$(PayloadPath)" /DInstallTarget=system "$(RepoSrcPath)\windows\Installer.Windows\Setup.iss" /O"$(OutputPath)"</InnoSetupCommandSystem>
-      <InnoSetupCommandUser>"$(NuGetPackageRoot)Tools.InnoSetup\6.0.5\tools\ISCC.exe" /DPayloadDir="$(PayloadPath)" /DInstallTarget=user "$(RepoSrcPath)\windows\Installer.Windows\Setup.iss" /O"$(OutputPath)"</InnoSetupCommandUser>
+      <InnoSetupCommandSystem>"$(NuGetPackageRoot)Tools.InnoSetup\$(InnoSetupVersion)\tools\ISCC.exe" /DPayloadDir="$(PayloadPath)" /DInstallTarget=system "$(RepoSrcPath)\windows\Installer.Windows\Setup.iss" /O"$(OutputPath)"</InnoSetupCommandSystem>
+      <InnoSetupCommandUser>"$(NuGetPackageRoot)Tools.InnoSetup\$(InnoSetupVersion)\tools\ISCC.exe" /DPayloadDir="$(PayloadPath)" /DInstallTarget=user "$(RepoSrcPath)\windows\Installer.Windows\Setup.iss" /O"$(OutputPath)"</InnoSetupCommandUser>
     </PropertyGroup>
 
     <Message Text="Lay Out" Importance="High" />