feat(playout): use liquidsoap version functions

- remove "packaging" package

playout/tests/liquidsoap/version_test.py

@@ -0,0 +1,37 @@
+from os import getenv
+
+import distro
+import pytest
+
+from libretime_playout.liquidsoap.version import (
+    get_liquidsoap_version,
+    parse_liquidsoap_version,
+)
+
+
+@pytest.mark.parametrize(
+    "version, expected",
+    [
+        ("invalid data", (0, 0, 0)),
+        ("1.1.0", (1, 1, 0)),
+        ("1.4.4", (1, 4, 4)),
+        ("2.0.0", (2, 0, 0)),
+        ("Liquidsoap 1.1.0", (1, 1, 0)),
+        ("Liquidsoap 1.4.4", (1, 4, 4)),
+        ("Liquidsoap 2.0.0", (2, 0, 0)),
+    ],
+)
+def test_parse_liquidsoap_version(version, expected):
+    assert parse_liquidsoap_version(version) == expected
+
+
+@pytest.mark.skipif(getenv("CI") != "true", reason="requires liquidsoap")
+def test_get_liquidsoap_version():
+    LIQUIDSOAP_VERSION_MAP = {
+        "bionic": (1, 1, 1),
+        "buster": (1, 3, 3),
+        "focal": (1, 4, 1),
+        "bullseye": (1, 4, 3),
+        "jammy": (2, 0, 2),
+    }
+    assert get_liquidsoap_version() == LIQUIDSOAP_VERSION_MAP[distro.codename()]