Update wapproj prior to new release.

Author: craigwi

Package/Package.wapproj

@@ -35,19 +35,21 @@
   <Import Project="$(WapProjPath)\Microsoft.DesktopBridge.props" />
   <PropertyGroup>
     <ProjectGuid>ac921d51-18e2-4fbe-a444-059543458c00</ProjectGuid>
-    <TargetPlatformVersion>10.0.17763.0</TargetPlatformVersion>
+    <TargetPlatformVersion>10.0.18362.0</TargetPlatformVersion>
     <TargetPlatformMinVersion>10.0.16299.0</TargetPlatformMinVersion>
     <DefaultLanguage>en-US</DefaultLanguage>
     <PackageCertificateKeyFile>Winfile.AppStore.UploadCert.pfx</PackageCertificateKeyFile>
     <EntryPointProjectUniqueName>..\src\Winfile.vcxproj</EntryPointProjectUniqueName>
-    <PackageCertificateThumbprint>81244A29ACE3400515761B9E2898EE35FD4EC512</PackageCertificateThumbprint>
     <GenerateAppInstallerFile>False</GenerateAppInstallerFile>
     <AppxAutoIncrementPackageRevision>False</AppxAutoIncrementPackageRevision>
     <AppxBundlePlatforms>x86|x64|arm64</AppxBundlePlatforms>
     <AppInstallerUpdateFrequency>1</AppInstallerUpdateFrequency>
     <AppInstallerCheckForUpdateFrequency>OnApplicationRun</AppInstallerCheckForUpdateFrequency>
     <!-- cf. https://github.com/microsoft/winfile/issues/227 -->
     <SkipUnionWinmd>true</SkipUnionWinmd>
+    <AppxPackageSigningTimestampDigestAlgorithm>SHA256</AppxPackageSigningTimestampDigestAlgorithm>
+    <GenerateTestArtifacts>True</GenerateTestArtifacts>
+    <HoursBetweenUpdateChecks>0</HoursBetweenUpdateChecks>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">
     <AppxBundle>Always</AppxBundle>