Moved .NET 10 OS support entry from preview to supported (#10161)

* Moved .NET 10 OS support entry from preview to supported

* Apply suggestion from @richlander

---------

Co-authored-by: Rich Lander <[email protected]>

Author: siramvikram

os-lifecycle-policy.md

@@ -6,12 +6,13 @@
 
 The following documents describe supported operating systems:
 
+* [.NET 10 supported OS versions](release-notes/10.0/supported-os.md)
 * [.NET 9 supported OS versions](release-notes/9.0/supported-os.md)
 * [.NET 8 supported OS versions](release-notes/8.0/supported-os.md)
 
 ## Preview .NET versions
 
-* [.NET 10 supported OS versions](release-notes/10.0/supported-os.md)
+N/A
 
 ## Out-of-support .NET versions