Add 1.1.1 to docs version drop down

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Alex Collins <acollins@nvidia.com>

Author: acollins3

docs/source/_static/switcher.json

@@ -3,6 +3,10 @@
     "version": "latest",
     "url": "https://docs.nvidia.com/nsight-python/"
   },
+  {
+    "version": "1.1.1",
+    "url": "https://docs.nvidia.com/nsight-python/1.1.1/"
+  },
   {
     "version": "1.1.0",
     "url": "https://docs.nvidia.com/nsight-python/1.1.0/"