Update .NET SDK version in global.json

Updated the `global.json` file to change the .NET SDK version
from `8.0.413` to `8.0.415`. This ensures the project uses
the latest SDK version, which may include bug fixes,
performance improvements, or new features.

Author: AngeloDotNet

global.json

@@ -1,5 +1,5 @@
 {
     "sdk": {
-        "version": "8.0.413"
+        "version": "8.0.415"
     }
 }