python3-pylast: update to 5.1.0.

[Luc-Saccoccio]

Testing the changes

• I tested the changes in this PR: *YES

[nekopsykose]

python3-importlib_metadata is only for python versions below 3.8 (by dep declaration in pyproject.toml), so not the case here and isn't needed

[paper42]

did you test if packages which depend on pylast still work?

[paper42]

that's a harmless warning, there should be no reason to explicitly disable tests, also, we can run at least some tests, it's currently ugly, but it works.

checkdepends="python3-pytest python3-flaky ${depends}"
do_check() {
       rm -rf tmp # remove artifacts from previous unsuccessful check run
       mkdir tmp
       bsdtar xf dist/pylast-$version-py3-none-any.whl -C tmp
       PYTHONPATH=tmp pytest
       rm -rf tmp
}

[paper42]

now when #42013 has been merged, you can leave out the do_check function