pkg/59698: lang/python/batteries-included.mk references no longer existing python38 and python39

[leot%NetBSD.org@localhost]

>Number:         59698
>Category:       pkg
>Synopsis:       lang/python/batteries-included.mk references no longer existing python38 and python39
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Oct 09 10:20:00 +0000 2025
>Originator:     Leonardo Taccari
>Release:        NetBSD 11.99.1
>Organization:
The NetBSD Foundation
>Environment:
System: NetBSD boh 11.99.1 NetBSD 11.99.1 (GENERIC) #0: Fri Aug 29 12:28:10 CEST 2025 leot@abacus:/usr/obj/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
	lang/python/batteries-included.mk still contains references to python38
	and python39 that are no longer present in pkgsrc-current.

	Why does it stop and only references up to python312?
	(python313 and python314 are not referenced)
	I guess that's because python313 and python314 already had all the
	batteries included, right?

	The file seems to be introduced by "Expanding Python base
	package" email thread
	<https://mail-index.NetBSD.org/tech-pkg/2023/10/19/msg028319.html>.
>How-To-Repeat:
	Code inspection
>Fix:
	If no longer needed, remove references to python38 and python39 and
	possibly vet that python313 and python314 should not be listed there.