Add Python 3.13 to build matrix

Updated Python version matrix to include 3.13.

Author: chamalgomes

.github/workflows/llama-build-cuda.yaml

@@ -21,7 +21,7 @@ jobs:
         run: |
           $matrix = @{
               'os' = @('ubuntu-24.04')
-              'pyver' = @("3.14")
+              'pyver' = @("3.13", "3.14")
               'cuda' = @("13.1.0")
               'releasetag' = @("basic")
           }
@@ -116,3 +116,4 @@ jobs:
 
 
 
+