Defer package updates while the Terminal is running (#16250)

Adds
```xml
<uap17:UpdateWhileInUse>defer</uap17:UpdateWhileInUse>
```
to our `Package.Properties` for all our packages.
This was added in the September 2023 OS release of Windows 11.

Apparently, this just works now? I did update VS,
but I don't _think_ that updated the SDK.
I have no idea how it updated the manifest definitions.

Closes #3915
Closes #6726

Author: zadjii-msft

src/cascadia/CascadiaPackage/Package-Can.appxmanifest

@@ -8,13 +8,14 @@
   xmlns:uap3="http://schemas.microsoft.com/appx/manifest/uap/windows10/3"
   xmlns:uap4="http://schemas.microsoft.com/appx/manifest/uap/windows10/4"
   xmlns:uap5="http://schemas.microsoft.com/appx/manifest/uap/windows10/5"
+  xmlns:uap17="http://schemas.microsoft.com/appx/manifest/uap/windows10/17"
   xmlns:desktop="http://schemas.microsoft.com/appx/manifest/desktop/windows10"
   xmlns:desktop4="http://schemas.microsoft.com/appx/manifest/desktop/windows10/4"
   xmlns:desktop5="http://schemas.microsoft.com/appx/manifest/desktop/windows10/5"
   xmlns:desktop6="http://schemas.microsoft.com/appx/manifest/desktop/windows10/6"
   xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
   xmlns:virtualization="http://schemas.microsoft.com/appx/manifest/virtualization/windows10"
-  IgnorableNamespaces="uap mp rescap uap3 desktop6 virtualization">
+  IgnorableNamespaces="uap mp rescap uap3 uap17 desktop6 virtualization">
 
   <Identity
     Name="Microsoft.WindowsTerminalCanary"
@@ -33,6 +34,7 @@
         <virtualization:ExcludedKey>HKEY_CURRENT_USER\Console\%%Startup</virtualization:ExcludedKey>
       </virtualization:ExcludedKeys>
     </virtualization:RegistryWriteVirtualization>
+    <uap17:UpdateWhileInUse>defer</uap17:UpdateWhileInUse>
   </Properties>
 
   <Dependencies>

src/cascadia/CascadiaPackage/Package-Dev.appxmanifest

@@ -7,14 +7,15 @@
   xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
   xmlns:uap3="http://schemas.microsoft.com/appx/manifest/uap/windows10/3"
   xmlns:uap4="http://schemas.microsoft.com/appx/manifest/uap/windows10/4"
+  xmlns:uap17="http://schemas.microsoft.com/appx/manifest/uap/windows10/17"
   xmlns:desktop="http://schemas.microsoft.com/appx/manifest/desktop/windows10"
   xmlns:desktop4="http://schemas.microsoft.com/appx/manifest/desktop/windows10/4"
   xmlns:desktop5="http://schemas.microsoft.com/appx/manifest/desktop/windows10/5"
   xmlns:desktop6="http://schemas.microsoft.com/appx/manifest/desktop/windows10/6"
   xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
   xmlns:virtualization="http://schemas.microsoft.com/appx/manifest/virtualization/windows10"
   xmlns:uap5="http://schemas.microsoft.com/appx/manifest/uap/windows10/5"
-  IgnorableNamespaces="uap mp rescap uap3 desktop6 virtualization">
+  IgnorableNamespaces="uap mp rescap uap3 uap17 desktop6 virtualization">
 
   <Identity
     Name="WindowsTerminalDev"
@@ -33,6 +34,7 @@
         <virtualization:ExcludedKey>HKEY_CURRENT_USER\Console\%%Startup</virtualization:ExcludedKey>
       </virtualization:ExcludedKeys>
     </virtualization:RegistryWriteVirtualization>
+    <uap17:UpdateWhileInUse>defer</uap17:UpdateWhileInUse>
   </Properties>
 
   <Dependencies>

src/cascadia/CascadiaPackage/Package-Pre.appxmanifest

@@ -9,13 +9,14 @@
   xmlns:uap4="http://schemas.microsoft.com/appx/manifest/uap/windows10/4"
   xmlns:uap5="http://schemas.microsoft.com/appx/manifest/uap/windows10/5"
   xmlns:uap7="http://schemas.microsoft.com/appx/manifest/uap/windows10/7"
+  xmlns:uap17="http://schemas.microsoft.com/appx/manifest/uap/windows10/17"
   xmlns:desktop="http://schemas.microsoft.com/appx/manifest/desktop/windows10"
   xmlns:desktop4="http://schemas.microsoft.com/appx/manifest/desktop/windows10/4"
   xmlns:desktop5="http://schemas.microsoft.com/appx/manifest/desktop/windows10/5"
   xmlns:desktop6="http://schemas.microsoft.com/appx/manifest/desktop/windows10/6"
   xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
   xmlns:virtualization="http://schemas.microsoft.com/appx/manifest/virtualization/windows10"
-  IgnorableNamespaces="uap mp rescap uap3 desktop6 virtualization">
+  IgnorableNamespaces="uap mp rescap uap3 uap17 desktop6 virtualization">
 
   <Identity
     Name="Microsoft.WindowsTerminalPreview"
@@ -34,6 +35,7 @@
         <virtualization:ExcludedKey>HKEY_CURRENT_USER\Console\%%Startup</virtualization:ExcludedKey>
       </virtualization:ExcludedKeys>
     </virtualization:RegistryWriteVirtualization>
+    <uap17:UpdateWhileInUse>defer</uap17:UpdateWhileInUse>
   </Properties>
 
   <Dependencies>

src/cascadia/CascadiaPackage/Package.appxmanifest

@@ -9,13 +9,14 @@
   xmlns:uap4="http://schemas.microsoft.com/appx/manifest/uap/windows10/4"
   xmlns:uap5="http://schemas.microsoft.com/appx/manifest/uap/windows10/5"
   xmlns:uap7="http://schemas.microsoft.com/appx/manifest/uap/windows10/7"
+  xmlns:uap17="http://schemas.microsoft.com/appx/manifest/uap/windows10/17"
   xmlns:desktop="http://schemas.microsoft.com/appx/manifest/desktop/windows10"
   xmlns:desktop4="http://schemas.microsoft.com/appx/manifest/desktop/windows10/4"
   xmlns:desktop5="http://schemas.microsoft.com/appx/manifest/desktop/windows10/5"
   xmlns:desktop6="http://schemas.microsoft.com/appx/manifest/desktop/windows10/6"
   xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
   xmlns:virtualization="http://schemas.microsoft.com/appx/manifest/virtualization/windows10"
-  IgnorableNamespaces="uap mp rescap uap3 desktop6 virtualization">
+  IgnorableNamespaces="uap mp rescap uap3 uap17 desktop6 virtualization">
 
   <Identity
     Name="Microsoft.WindowsTerminal"
@@ -34,6 +35,7 @@
         <virtualization:ExcludedKey>HKEY_CURRENT_USER\Console\%%Startup</virtualization:ExcludedKey>
       </virtualization:ExcludedKeys>
     </virtualization:RegistryWriteVirtualization>
+    <uap17:UpdateWhileInUse>defer</uap17:UpdateWhileInUse>
   </Properties>
 
   <Dependencies>