test: liquidsoap package from ppa is version 1.4.2 (#2223)

The PPA was previously not properly installed in the dev container.

.github/workflows/dev-tools.yml

@@ -55,7 +55,7 @@ jobs:
           COPY packages.list packages.list
           EOF
 
-          [[ "${{ matrix.release }}" =~ "focal" ]] && \
+          [[ "${{ matrix.release }}" == "focal" ]] && \
           cat <<EOF >> Dockerfile
           RUN DEBIAN_FRONTEND=noninteractive apt-get --quiet update && \
               DEBIAN_FRONTEND=noninteractive apt-get --quiet install -y software-properties-common && \

playout/tests/liquidsoap/version_test.py

@@ -28,7 +28,7 @@ def test_parse_liquidsoap_version(version, expected):
 @pytest.mark.skipif(getenv("CI") != "true", reason="requires liquidsoap")
 def test_get_liquidsoap_version():
     LIQUIDSOAP_VERSION_MAP = {
-        "focal": (1, 4, 1),
+        "focal": (1, 4, 2),
         "bullseye": (1, 4, 3),
         "jammy": (2, 0, 2),
     }