Bump xamlTools to latest signed release (17.11.34917.22):

https://dev.azure.com/devdiv/DevDiv/_build?definitionId=10369&keywordFilter=main

I verified the following:
- onTypeFormat no longer causes exceptions when typing in XAML
- Format Document/Selection works as expected
- onAutoInsert no longer requires a space after the tag name to work
- completion item documentation tooltips are back

Author: mgoertz-msft

package.json

@@ -42,7 +42,7 @@
     "razor": "7.0.0-preview.24178.4",
     "razorOmnisharp": "7.0.0-preview.23363.1",
     "razorTelemetry": "7.0.0-preview.24178.4",
-    "xamlTools": "17.11.34907.35"
+    "xamlTools": "17.11.34917.22"
   },
   "main": "./dist/extension",
   "l10n": "./l10n",