Honor PYTHON3_VERSION for mod_wsgi rpm installation

Different variants of mod_wsgi are provided like:-
python3-mod_wsgi.x86_64
python3.11-mod_wsgi.x86_64
python3.12-mod_wsgi.x86_64

Adjust script to also consider PYTHON3_VERSION var
to correctly install the package.

Related-Bug: #2109591
Change-Id: I6bbfd92ef727ef9b343cd5778bb78f43c13165ad
1 file changed