ci: more verbose ffmpeg logs

Author: joanise

aligner/tests/test_cli.py

@@ -87,7 +87,8 @@ def test_align_something(self):
             # in CI. It's not a hard requirement, so just convert to .wav.
             result = subprocess.run(["ffmpeg", "-i", m4a, wav], capture_output=True)
             if VERBOSE_OVERRIDE:
-                print(result.stdout)
+                print("ffmpeg output:", result.stdout, result.stderr)
+                print("ffmpeg exit code:", result.returncode)
                 print(tmpdir)
                 os.system("ls -la " + tmpdir)
             textgrid = tmppath / "ej-fra-16000.TextGrid"