ci: Drop "-dev" from requested Python 3.13 version

Now that there has been a 3.13 final release, "3.13" and "3.13-dev" are
equivalent.

Signed-off-by: Matt Wozniski <[email protected]>

Author: godlygeek

.github/workflows/build.yml

@@ -108,7 +108,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - '3.13-dev'
+          - '3.13'
           - '3.12'
           - '3.11'
           - '3.10'