test: temporarily ignore specs::install::package_extra_nmd test (#28954)

These tests are failing randomly on Windows at the moment. The PR that
added them was released in Deno v2.2.10 and users haven't reported any
problems so far. So temporarily ignoring these tests to unblock another
patch release.

Author: bartlomieju

tests/specs/install/package_extra_nmd/__test__.jsonc

@@ -1,5 +1,6 @@
 {
   "tempDir": true,
+  "ignore": true,
   "tests": {
     "auto": {
       "steps": [