Log message:
*: recursive bump for Python 3.11 as new default

Log message:
Mass-change BUILD_DEPENDS to TOOL_DEPENDS outside mk/.

Almost all uses, if not all of them, are wrong, according to the
semantics of BUILD_DEPENDS (packages built for target available for
use _by_ tools at build-time) and TOOL_DEPEPNDS (packages built for
host available for use _as_ tools at build-time).

No change to BUILD_DEPENDS as used correctly inside buildlink3.

As proposed on tech-pkg:
https://mail-index.netbsd.org/tech-pkg/2023/06/03/msg027632.html

Log message:
*: remove some test dependencies for python 2 packages

not worth the effort to keep these dependencies working for python 2

Log message:
py27-coverage: fix a TEST_DEPENDS

but tests don't run anyway

Log message:
devel/py27-coverage: import py27-coverage-5.5nb2

Python module that measures code coverage during Python execution.
It uses the code analysis tools and tracing hooks provided in
the Python standard library to determine which lines are executable,
and which have been executed.

This package contains the python 2.7 version.