Revert "Added NetBox 4.0 to test matrix"

This reverts commit d4257cd.

Author: jeffgdotorg

.github/workflows/py3.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         python: ["3.8", "3.9", "3.10", "3.11"]
-        netbox: ["3.4", "3.5", "3.6", "3.7", "4.0"]
+        netbox: ["3.4", "3.5", "3.6", "3.7"]
 
     steps:
       - uses: actions/checkout@v4