Update @types/vscode to 1.64.0

While greater than our engine version, we have (and will have) code that
opts into using newer APIs when available.

Author: andyleejordan

package-lock.json

@@ -59,7 +59,7 @@
     "@types/semver": "~7.3.9",
     "@types/sinon": "~10.0.11",
     "@types/uuid": "~8.3.4",
-    "@types/vscode": "~1.59.0",
+    "@types/vscode": "~1.64.0",
     "@vscode/test-electron": "~2.1.2",
     "esbuild": "^0.14.23",
     "glob": "^7.2.0",